Shoot-jumping off of walls would make for a nice 'advanced' movement/situational technique.
Enable rocket hit distance messages for long shots.
FOV adjustment
Default to no mouse accel, y scale 1
Movement tutorial / quickstart for newbs
Weapon tutorial / practice map with non-moving targets that respond somehow when you hit them.
Bots (or method to code their behavior via maniascript)
Improved UI responsiveness/optimize layout
Ability to apply 'texture packs' to the map (ie: doing something like a optional TRON skin for ground/wall textures would be awesome)
Add hud readout for movement speed


