Celestalon decided to tease us with this rather cryptic tweet regarding upcoming class changes on the patch 6.1 PTR.
Class design is often 85% talking about what to do, 15% actually doing. Today was the 15%. Next PTR build should spur lots of discussion.- Celestalon (@Celestalon) January 22, 2015
Alright, Celestalon, you have my attention. He later followed it up with another tweet saying the changes will primarily be number tweaks, but there will be a few functionality changes. Overall class balance could definitely use some tweaks, at least for the top and bottom outliers. Recent hotfixes have helped, but I get the feeling they've been cautious with some of the changes. Patches are probably a better time to make significant adjustments since they can be thoroughly tested beforehand.
What would you like to see changed for your class in patch 6.1?
Update: Theses changes won't be going in today's upcoming build (January 22), but should make it into the next PTR build (source).