I know this is probably already planned, along with 3d characters and other goodies I've seen in the tech demos, but I thought I'd mention a few things that I'd like to see on there.
A. Real-time/Turn-based combat - So we can switch modes easilly.
B. Always Run - Very important, and is not implemented right now at all. I'm tired of holding down shift.
C. Changing default FOV, Range, and Name display - These features are already in the game, but you have to turn them on every time.