I don't know how a Chemist from Final Fantasy Tactics and other FF games would be implemented but I welcome the job even more than Geomancer. All I firmly believe in, after what I've read and experienced, is that the game is in dire need of a healer.

My two cents?

Chemist better

Now how would a Chemist work? Would he improve the potency of potions (my idea, terrible idea) or have his own skills and spells? What would the aforementioned abilities be?