Yep. New stuff added, but tbh it's still a fairly big grind. Levels 40+ are better now though, with quests giving more xp. What used to give around 200k now gives 800k-1.2 million.
The only gripe I have with this game is the lack of end-game content, and as a result of this most people use their 50's to grind AP, and they all re-roll to level 30 ranger/assassin twinks. And leveling between level 23-42 is a huge pain in the butt.
assassins got a huge nerf with everyone being able to escape their stuns with 1 skill, and armsfusion has been introduced where you can merge two weapons together (ie 2 gold spears) to make one super-mega-awesome-1337-new-weapon.
Aside from that much ado about nothing really, the proper update will be 2.0 at the end of the year which will raise the level cap to 55 and add a new region to..do stuff in. Also there will be ground-base pvp.
Still, the game is even today very good fun, find a good server (I recommend Spatalos - most balanced server atm), pick a class other than assassin, and get your leveling on.