I know this isn't much and all, but I don't feel like using quotes and writing long sentences about specific classes..
..I just think Healers don't need an update.
Disagree with you there.
Have you tried bloodmage? Because I've mastered it. And it's
awful.
However, I don't think clerics or disciples need much of a change, except possible adjustment of stamina costs for Disciples as it's a new system and I haven't tried the stamina costs. Druids are alright, but they are kindof bland and can't really do anything unique.
So I think bloodmages, and to some extent druids, need an update. But not clerics or disciples.