Sorry for the incoming waffle but I've been meaning to post this for a while, but considering you can view all class skills here:
http://www.wildstar-arkship.de/actionsetbuilder/en/ it's not much of something secret.
Now when you watch this:
https://www.youtube.com/watch?v=pnmlSU_nTi0
They make fun of abilities in other MMOs "Instant, Cast time, Channel - rinse repeat" like it's different in Wildstar (I'll get to that later).
There's also the argument between people about the limited action set, there are all types of arguments but the one I see most are
1: That you get to play how you want
2: It takes skill to pick the right ones
3: Less cookie cutter builds
Personally, I dislike it because of one simple reason, you are forced to go one route (3: cookie cutter), the choice playing how you want is not based off skills, but your class and role(1), and there's no skill involved because there only so few abilities you want and you -must- have them to be the best.(2)
Be the best? I know, not everyone cares; but you'll care when it matters.
Now, as an engineer for example you have two paths to choose, are you going to be DD or Tank? Let's go with DD.
Your abilities are classed as
Assault,
Support or
Utility and your skills are based off how much Assault Power(AP) or Support Power(SP)you have.
So as a damage dealer, you do not want to use any of the skills in the support tree because they use support power and you'll be gaining items pumping up your assault power. You'll also see from the abilities in the support tree that there really isn't anything good for you.
You don't have to read the list below; but it basically shows you that as a damage dealer you really don't want to be using any of these skills as their effectiveness will be lower due to you having higher AP.
Bruiser Bot - For having a tiny bit extra damage, alright if you don't have skills to slot and want it to keep damage off you while you damage.
Hyper Wave - Support Damage and Taunt - Don't want this.
Flak Cannon - Support Damage and tanking buffs.
Give'em the Gas - AOE Dot based on support, debuff to enemy.
Bio Shell - Similar to above, but damage and reduce enemy defenses.
Feedback - Riposte like skill, support damage.
Ricochet - Tank Builder I believe.
Disruptive Module - Support damage and gives shield based on support amount.
Particle Ejector - Support damage spender
Thresher - Charged attack on support power.
Now, that's a whole 10 abilities lost from the "choose what you want" style of play, granted this is a cool thing if you decide to save tanking gear and swap out to one when you need to, but this is just dual spec, dual talents, whatever game has done it already.
As a damage dealer, what will we be using? Since we can only slot 8 skills:
1: Pulse Blast - Builder
2: Electrocute - Cheap Spender and Single Target DPS.
3: Quick Burst- Free Instant
4: Arty Bot - Free AOE/Damage
5: Energy Auger - Opener
6: Mortar Strike - Your big AOE spender.
7: Tactical Strike - Tag targets multiple times then unleashes damage.
8: (Utility) Zap - Everyone needs an interupt
The one's left over are:
Bolt Caster, Unstable Anomaly and Shock Pulse simply because their effective DPS for cost and over time was not worth it. But I understand abilities and such will change during the course of the game.
Remember instant, cast time, channel - from the video above?
Well engineer is pretty much this:
Pulse Blast (and/or Energy Auger) (Cast time) building power 3 times.
Electrocute (Channel) spending the power.
Quick Burst (Your instant on crit)
You will shove in arty bot for extra free DPS and your interupt now and again, you have your large aoe for team play and such and that's it, you don't need any more abilities for PVE or get any worth changing out for.
Cookie cutter right down to it's very core, it might change but there are only 3 more assault abilities and as for utility it's very selective and has more tank related things and mostly for what I can assume are only raids where you NEED certain abilities and for PVP.
I'm planning to play the game, but I can't get over how many people try to make the abilities and LAS sound like something it isn't. It's just like every other game but restrictive in how many you can use.
There are absolutely no flavour skills, mmos like wow/ao/swtor had tons of abilities, and the lack of "class buffs" are also a disappointment in many of todays mmos.