I just copied from the other thread, I think one of them needs to be closed:
1) Make your decisions influence the game world itself more, not just dialogues and the very ending
2) Jedis were far too powerful in KotOR. With two jedis you simply went through hordes of enemies without difficulty.
3) More multiple solutions. The rancor was one of the few encounters you could solve in more than the two evil-notevil ways.
4) Less conservative talents. Go for some wild stuff, no two-bladed lightsabers boring stuff. Go for some somewhat crazy perks like robot killer ("wents berserk on a robots sight") or sand crawler ("moves faster on sand planets").
5) Yes, more real life would also be nice. In the first KotOR all people felt like they were just there for the player.