First off, I understand that the game has moved past the "Alpha" stage so some of these suggestions will most likely not be implemented, but I would still like to add my two cents "wish list."
1. LESS BUGS. This is my number one... right now I can barely play KOTOR 1, as I have an ATI 9800 Pro video card that is making the game randomly crash on loading screens. Please, please, please, Obsidian, iron out those bugs before the game goes gold, and work to fix problems with patches if they do arise.
2. Give us a better selection of decent items for characters to use. In KOTOR 1, my characters would almost always be using the same equipment each time I went through the game, because those were the only good items- e.g, Carth ALWAYS using the Cassus Fett blaster pistol because it was the best one in the game. Give us some alternative choices to use, so we can try out different things in replaying the game, without punishing ourselves by not using the "strongest" weapons. At least for me, having characters wear the same equipment every time I play makes it get really old, really fast.
3. On a similar note, make sure each NPC is useful and potentially powerful. I found myself using the three Jedi NPCs in KOTOR 1 far more than any other characters, just because they seemed more useful to me than some of the other characters. I hardly ever used Mission Vao in my game, because two other characters had decent demolitions skill scores, and her security skill wasn't needed because I could just bash the doors down. So I would like to see a reason for each NPC in the game, other than to just make them required for a certain part of the game (as Mission was briefly on Taris) or "just for variety."
4. Make the music and sound good. Really good. Good SFX add a lot to a game. That goes for the voice acting as well.
5. Give the light side some decent offensive force powers, so the good Jedi don't feel like they are weaker than the DS players. I often got that feelings when I played light side in the first game, and didn't have any offensive powers like Force Lightning. LS Jedi consulars need something to do besides increase peoples' ability scores and stun enemies!
6. Give us other ways to turn to the dark side than just shaking people down for money and threatening to kill them (or actually killing them). That was really a disappointment in KOTOR 1. The only really, truly "dark side-ish" thing in the game (I thought) was the choice at the end of the game that determined the ending.
7. Multiple endings, more than just one ending for light side and one for dark side. That would be great, and increase the replay value of the game.
That's about all I can think of. I'm sure all these points have been mentioned by other people before, though. I could write a whole book on what I want to see in KOTOR 2, so I think I'll stop here before I get carried away. Keep up the good work, Obsidian... from the info that has been revealed so far about the game, I can say that I think it wil be awesome. B)