In the options, under controls tab you can (re)map a variety of keys to help you customize the game: I'd like to see a few more options there.
Gate Map: I often look at the gate map as I'm playing, so having a mapable hotkey to bring that up fast would be great!
/greet: there are several commands you can map right now, but no greeting, and that is the one I personally would use the most.
Custom chat commands: have 3 or 4 slots for map-able hotkeys that will just send customizable text to the text line.
This would allow custom shouts, and custom text commands for any command SK supports thru the text entry line.
This would really be great for events where you want to communicate something specific to your team mates (like "The Harvester is on me, I'll keep it busy." during Apocrea)