There are definitely a few abilities that could stand to be removed (heavy thrust and hot shot come to mind immediately) as they don't really add much to game play and are more of a chore than anything to maintain.

I believe the cross class system could stand to be revised or eliminated entirely. Give each Job the 2-3 cross critical abilities it needs as a baseline (provoke, blood for blood, invigorate, raging strikes, etc.) as well. That would save some bloat. As far as traits go, I've posted it in another thread but I'll add it here, I'd want the traits to be more than just a slight increase to a stat or ability, I would want them to add some really meaningful interactions and adjustments to gameplay, just a few examples:

Paladin- Enhanced Bulwark, for the duration each shield block resets the cooldown on shield swipe, each shield swipe does 50% more damage and ignores the damage penalty of shield oath.

Dark Knight- Enhanced Dark Passenger, using Dark Passenger makes the next Dark Arts free.

White Mage- Enhanced Spells, each Cure 1-3 has a 50% chance of reducing the cooldown of Presence of Mind by 10 seconds, cannot occur more than once every ten seconds.

That's what *I* personally want with any new traits we get, we could use some abilities to shake up the current playstyles without adding even more abilities to the rotations.