I'd like to see an option that turns off Mouse controls/mouse support. I unfortunately don't have a desktop at the moment, and I use a laptop. My thumbs hit the touchpad under the space bar a lot and sometimes undesirable things happen with the mouse controls as a result.
I know I could disable the touchpad itself on the laptop, but I kinda need that for internet et al, especially when I play in Windowed mode!
Also, somewhat of a vanity option as opposed to practical, when setting the config to pick from Random names for your character, I'd like to actually be able to edit the list of random names, so I could just put a good ten or twelve names I like in there and have it randomly pull from those instead of the presets.