Achievements
There aren't a lot of new achievements, but it looks like you'll have to explore everything again.
* Surveying the Damage - Explore the following areas in Kalimdor and the Eastern Kingdom to see the changes wrought by the Cataclysm.
* Level 85 - Reach level 85.
* Explore Vashj'ir - Explore Vashj'ir, revealing the covered areas of the world map.
* Cataclysm Dungeon Explorer - Discover the entrances to the following Cataclysm dungeons
New Titles
A couple of strange new titles have been added, no more details at this point.
* Exalted of <name>
* Veteran of <name>
* Guardian of <name>
* Recruit of <name>
Professions
A lot of recipes are available but so far I don't have any stats or items, I'll just list the enchants and the useful things for the moment.
Alchemy
* Transmute: Elemental Fusion - Transform the six elements into a random single element. Creates Item #54464 x 4. / Reagents: Item #52325, Item #52326, Item #52327, Item #52328, Item #52329, Item #52330
Enchanting
* Enchanting - Allows an enchanter to put masterful enchantments on weapons and armor up to a maximum potential skill of 525. /
* Enchant Weapon - Landslide - Permanently enchant a weapon to sometimes increase attack power by 120 for 10 sec when striking in melee. Requires a level 300 or higher item. Creates Item #52776. / Reagents: Item #52555 x 6, Item #52719 x 4, Item #52721 x 2, Item #52722 x 4
* Enchant Weapon - Power Torrent - Permanently enchant a weapon to sometimes increase spell power by 40 for 15 sec when casting spells or striking in melee. Requires a level 300 or higher item. Creates Item #52774. / Reagents: Item #52555 x 12, Item #52721 x 2, Item #52722 x 4
* Enchant Weapon - Windwalk - Permanently enchant a weapon to sometimes increase dodge rating by 60 for 10 sec when striking in melee. Requires a level 300 or higher item. Creates Item #52775. / Reagents: Item #52719 x 6, Item #52721 x 2, Item #52722 x 4
* Enchant Weapon - Heartsong - Permanently enchant a weapon to sometimes increase haste rating by 350 for 15 sec when casting spells or striking in melee. Requires a level 300 or higher item. Creates Item #52761. / Reagents: Item #52555 x 2, Item #52719 x 3, Item #52721
* Enchant Weapon - Hurricane - Permanently enchant a weapon to sometimes increase haste rating by 350 for 15 sec when casting spells or striking in melee. Requires a level 300 or higher item. Creates Item #52760. / Reagents: Item #52555 x 7, Item #52721
* Enchant Weapon - Elemental Slayer - Permanently enchant a weapon to sometimes disrupt elementals when struck, dealing Arcane damage and silencing them for 5 sec. Requires a level 300 or higher item. Creates Item #52755. / Reagents: Item #52555 x 5, Item #52719
* Enchant Weapon - Avalanche - Permanently enchant a weapon to sometimes deal Nature damage to an enemy struck in melee. Requires a level 300 or higher item. Creates Item #52748. / Reagents: Item #52719 x 4
* Enchant Weapon - Mending - Permanently enchant a weapon to sometimes heal you when striking an enemy. Requires a level 300 or higher item. Creates Item #52747. / Reagents: Item #52555, Item #52719
* Enchant Chest - Exceptional Spirit - Permanently enchant a chest to increase Spirit by 40. Requires a level 300 or higher item. Creates Item #52765. / Reagents: Item #52555 x 10, Greater Eternal Essence x 2
* Enchant Chest - Greater Stamina - Permanently enchant a chest to increase Stamina by 75. Requires a level 300 or higher item. Creates Item #52780. / Reagents: Item #52555 x 10, Item #52721 x 4, Item #52722
* Enchant Chest - Peerless Stats - Permanently enchant chest armor to increase all stats by 20. Requires a level 300 or higher item. Creates Item #52779. / Reagents: Item #52722 x 3
* Enchant Chest - Mighty Resilience - Permanently enchant chest armor to increase resilience rating by 40. Requires a level 300 or higher item. Creates Item #52758. / Reagents: Item #52555 x 9
* Enchant Chest - Stamina - Permanently enchant chest armor to increase Stamina by 55. Requires a level 300 or higher item. Creates Item #52751. / Reagents: Item #52555 x 5, Item #52718
* Enchant Chest - Mighty Stats - Permanently enchant chest armor to increase all stats by 15. Requires a level 300 or higher item. Creates Item #52744. / Reagents: Item #52718 x 2
* Enchant Boots - Assassin's Step - Permanently enchant boots to increase movement speed slightly and Agility by 25. Requires a level 300 or higher item. Creates Item #52781. / Reagents: Item #52555 x 3, Item #52719 x 9, Item #52722
* Enchant Boots - Lavawalker - Permanently enchant boots to increase movement speed slightly and mastery rating by 35. Requires a level 300 or higher item. Creates Item #52782. / Reagents: Item #52719 x 10, Item #52722
* Enchant Boots - Mastery - Permanently enchant boots to increase mastery rating by 50. Requires a level 300 or higher item. Creates Item #52771. / Reagents: Item #52555 x 10, Item #52719 x 3
* Enchant Boots - Precision - Permanently enchant boots to increase hit rating by 50. Requires a level 300 or higher item. Creates Item #52769. / Reagents: Item #52555 x 8, Item #52719 x 4
* Enchant Boots - Major Agility - Permanently enchant boots to increase Agility by 35. Requires a level 300 or higher item. Creates Item #52757. / Reagents: Item #52555 x 4, Item #52719 x 2
* Enchant Boots - Haste - Permanently enchant boots to increase haste rating by 50. Requires a level 300 or higher item. Creates Item #52750. / Reagents: Item #52555 x 2, Item #52719
* Enchant Boots - Earthen Vitality - Permanently enchant boots to increase movement speed slightly and Stamina by 30. Requires a level 300 or higher item. Creates Item #52743. / Reagents: Item #52555 x 2
* Enchant Bracer - Greater Critical Strike - Permanently enchant bracers to increase critical strike rating by 65. Requires a level 300 or higher item. Creates Item #52778. / Reagents: Item #52555 x 15, Item #52719 x 3, Item #52722
* Enchant Bracer - Greater Speed - Permanently enchant bracers to increase haste strike rating by 65. Requires a level 300 or higher item. Creates Item #52785. / Reagents: Item #52555 x 13, Item #52719 x 4, Item #52722
* Enchant Bracer - Greater Expertise - Permanently enchant bracers to increase expertise rating by 50. Requires a level 300 or higher item. Creates Item #52772. / Reagents: Item #52555 x 4, Item #52719 x 6
* Enchant Bracer - Exceptional Spirit - Permanently enchant bracers to increase Spirit by 50. Requires a level 300 or higher item. Creates Item #52770. / Reagents: Item #52555 x 9, Item #52719 x 3
* Enchant Bracer - Precision - Permanently enchant bracers to increase hit rating by 50. Requires a level 300 or higher item. Creates Item #52766. / Reagents: Item #52555 x 12, Item #52719
* Enchant Bracer - Dodge - Permanently enchant bracers to increase dodge rating by 50. Requires a level 300 or higher item. Creates Item #52763. / Reagents: Item #52555 x 6, Item #52328 x 15
* Enchant Bracer - Critical Strike - Permanently enchant bracers to increase critical strike rating by 50. Requires a level 300 or higher item. Creates Item #52752. / Reagents: Item #52555 x 4, Item #52718 x 2
* Enchant Bracer - Speed - Permanently enchant gloves to increase haste rating by 50. Requires a level 300 or higher item. Creates Item #52746. / Reagents: Item #52555 x 2, Item #52718
* Enchant Cloak - Greater Critical Strike - Permanently enchant a cloak to increase critical strike rating by 65. Requires a level 300 or higher item. Creates Item #52777. / Reagents: Item #52555 x 20, Item #52722
* Enchant Cloak - Greater Intellect - Permanently enchant a cloak to increase Intellect by 50. Requires a level 300 or higher item. Creates Item #52773. / Reagents: Item #52555 x 9, Item #52719 x 4
* Enchant Cloak - Protection - Permanently enchant a cloak to increase armor by 250. Requires a level 300 or higher item. Creates Item #52767. / Reagents: Item #52555 x 8, Item #52327 x 15
* Enchant Cloak - Critical Strike - Permanently enchant a cloak to increase critical strike rating by 50. Requires a level 300 or higher item. Creates Item #52764. / Reagents: Item #52555 x 8, Greater Eternal Essence x 2
* Enchant Cloak - Intellect - Permanently enchant a cloak to increase Intellect by 30. Requires a level 300 or higher item. Creates Item #52753. / Reagents: Item #52555 x 6
* Enchant Cloak - Greater Spell Piercing - Permanently enchant gloves to increase spell penetration by 50. Requires a level 300 or higher item. Creates Item #52745. / Reagents: Item #52555 x 3
* Enchant Gloves - Greater Mastery - Permanently enchant gloves to increase mastery rating by 65. Requires a level 300 or higher item. Creates Item #52784. / Reagents: Item #52555 x 10, Item #52719 x 5, Item #52722
* Enchant Gloves - Mighty Strength - Permanently enchant gloves to increase Strength by 50. Requires a level 300 or higher item. Creates Item #52783. / Reagents: Item #52555 x 4, Item #52719 x 8, Item #52722
* Enchant Gloves - Greater Expertise - Permanently enchant gloves to increase expertise rating by 50. Requires a level 300 or higher item. Creates Item #52759. / Reagents: Item #52555 x 5, Item #52719 x 2
* Enchant Gloves - Exceptional Strength - Permanently enchant gloves to increase Strength by 35. Requires a level 300 or higher item. Creates Item #52756. / Reagents: Item #52555 x 3, Item #52719 x 2
* Enchant Gloves - Haste - Permanently enchant gloves to increase haste rating by 50. Requires a level 300 or higher item. Creates Item #52749. / Reagents: Item #52555 x 4, Item #52718
* Enchant Gloves - Mastery - Permanently enchant gloves to increase mastery rating by 50. Requires a level 300 or higher item. Creates Item #52687. / Reagents: Item #52555, Item #52718
* Enchant Shield - Superior Intellect - Permanently enchant a shield to increase Intellect by 35. Requires a level 300 or higher item. Creates Item #52768. / Reagents: Item #52719 x 3, Item #52326 x 18
* Enchant Shield - Blocking - Permanently enchant a shield to increase block rating by 40. Requires a level 300 or higher item. Creates Item #52762. / Reagents: Item #52325 x 10, Item #52327 x 10, Item #52721
* Enchant Shield - Protection - Permanently enchant a cloak to increase armor by 160. Requires a level 300 or higher item. Creates Item #52754. / Reagents: Item #52719, Item #52327 x 15
* Enchant Ring - Agility - Permanently enchant your own ring to increase Agility by 50. Enchanting your ring causes it to become soulbound and requires 475 Enchanting skill to remain active. Creates Item #-1. / Reagents: Item #52721
* Enchant Ring - Greater Stamina - Permanently enchant your own ring to increase Stamina by 75. Enchanting your ring causes it to become soulbound and requires 475 Enchanting skill to remain active. Creates Item #-1. / Reagents: Item #52721
* Enchant Ring - Intellect - Permanently enchant your own ring to increase Intellect by 50. Enchanting your ring causes it to become soulbound and requires 475 Enchanting skill to remain active. Creates Item #-1. / Reagents: Item #52721
* Enchant Ring - Strength - Permanently enchant your own ring to increase Strength by 50. Enchanting your ring causes it to become soulbound and requires 475 Enchanting skill to remain active. Creates Item #-1. / Reagents: Item #52721
First Aid
* Dense Embersilk Bandage - Creates Item #53051. / Reagents: Item #53010 x 3
* Heavy Embersilk Bandage - Creates Item #53050. / Reagents: Item #53010 x 2
* Embersilk Bandage - Creates Item #53049. / Reagents: Item #53010
Herbalism
* Herb Gathering - How to find and gather Cataclysm herbs. Gives a potential herbalism skill of 525. / 5 yd range
* Lifeblood - Uses your skill in Herbalism to absorb energy and nutrients from the earth, healing you for 7200 (increased by maximum health) over 5 sec. Can be used while stealthed or invisible. / 3 min cooldown
Mining
* Mining - You are an Illustrious Grand Master Miner. Gives a potential mining skill of 525. / 5 yd range
* Toughness - All your hard work spent mining has made you exceptionally tough, increasing your Stamina by 120. /
* Smelt Ebonsteel - Allows the miner to smelt pyrium bars and obsidian shards to create ebonsteel. Requires a forge. Creates Item #53039. / Reagents: Item #51950 x 10, Item #52327 x 10
* Smelt Pyrite - Allows the miner to smelt a chunk of pyrite ore into a pyrium bar. Smelting requires a forge. Creates Item #51950. / Reagents: Item #52183 x 2
Skinning
* Master of Anatomy - Skinning all those dead animals has broadened your anatomical knowledge, increasing your critical strike rating by 80. /
* Skinning - Master skill in skinning the hides from beasts for use in Leatherworking. Gives a potential skinning skill of 450. Requires a Skinning Knife. / 5 yd range
Tailoring
* Dream of Azshara - Combines cloth and the elements of water to weave a piece of Dreamcloth. This Dreamcloth recipe can only be created once a week. Creates Item #54440. / 6.83 days cooldown, Reagents: Item #53643 x 8, Item #52326 x 30
* Dream of Deephome - Combines cloth and the elements of earth to weave a piece of Dreamcloth. This Dreamcloth recipe can only be created once a week. Creates Item #54440. / 6.83 days cooldown, Reagents: Item #53643 x 8, Item #52327 x 30
* Dream of Hyjal - Combines cloth and the elements of life to weave a piece of Dreamcloth. This Dreamcloth recipe can only be created once a week. Creates Item #54440. / 6.83 days cooldown, Reagents: Item #53643 x 8, Item #52329 x 30
* Dream of Ragnaros - Combines cloth and the elements of fire to weave a piece of Dreamcloth. This Dreamcloth recipe can only be created once a week. Creates Item #54440. / 6.83 days cooldown, Reagents: Item #53643 x 8, Item #52325 x 30
* Dream of Skywall - Combines cloth and the elements of air to weave a piece of Dreamcloth. This Dreamcloth recipe can only be created once a week. Creates Item #54440. / 6.83 days cooldown, Reagents: Item #53643 x 8, Item #52328 x 30
* Dreamcloth (Shadow) - Creates Item #54440. / 6.83 days cooldown, Reagents: Item #53643 x 8, Item #52330 x 30