I noticed in the Q/A they were planning on opening up more buttons to customization; I understand why there might be some technical things getting in the way, but I certainly hope they are planning on eventually letting us remap everything.

And I'm more curious how they plan on changing the action bar. The Up/Down Mechanic, while it works decently with Gamepad, it works horrdily with the KB at the moment. It is essentially an elaborate menu system that allows you to place things where you like.

Honestly though, I think Targeting is a huge problem: spending too much time targeting in proportion to actually fighting, which ends up placing a huge emphasis on how good you are at targeting.

Also, the IJKL and arrow key wonkiness will hopefully be fixed.