Something to consider
Ive noticed most Star Wars games (Specifically games like the JK series and Kotor) give the option to be light or dark but never really go farther than that. Id like to see the next JK game where you play a Sith. Conquering the galaxy is just somehow satisfying. Maybe start as a Stormtrooper or something and work your way up. I think it would be a nice change of pace.
Another character that gets very little "screen time" if you will that I would think would make for a good JK game is either Jan or Mara.