Is It Even Possible To Have A New Healer Job?

[Mimilu]

I usually play a support class in MMOs, and a pure buffer/debuffer type of "healer" is something I've yet to see in this game. but as already said, the game design has restricted the role somewhat.
if there will be a new healer job someday I'd love to see more CC-focused skills

AST is going to be the closest thing you are going to get to a pure buffer healer. :B
As for CC-focused, he problem with CC skills is that boss-enemies (like in raids, trials, and dungeons) are immune to most CC-effects besides the few stuns or silences, both of which are usually the tanks job anyway. :B