We already got DNC, and so my favorite classes are already in the game (WHM, SCH, BRD & DNC).

That said, I can get behind Psychic since it brings something really new to the game and its animations and powers are really cool.

Templar is another one I'd like to see, but seeing as how it's usually a glorified Paladin with buffs/debuffs instead of outright heals, it'd need to be heavily reworked.