I honestly just want more non-aetherical healers like Chemist to be added, though I want them to be added in such a way that they don't worsen the currently precarious balance that AST's inclusion brought to the table. It's much /much/ better now but having a third healer that's basically a mish mash of the other two with random chance thrown in was bound to cause issues, though I beg people to not take that as my proclaiming hatred of the class itself. I'm just not fond of how SE approached the whole balance conundrum.

As for current classes, I'm pretty happy with where SCH currently is even though I'm still very much miffed at how PAINFUL MCH is before you get Cooldown. They really need to shuffle around some of the abilities because the class just is not fun to play before level 52.