There definitely would have to be hotkeys for the 11-20 slots. I don't touch the mouse when I play because of the fixed button placements and how jerky the camera is when mouse controlled, so everything needs to work from the keyboard.

I really cannot fathom why the current bars have fixed hotkeys, or why anything has fixed hotkeys. Nobody worth their salt binds their abilities to numbers past 6 in MMOs where you can freely bind your keys because you can't reach them without moving your left hand.