There are three things I'd really like to see in Kotor 2:
1: Strongholds, like in BG2. A place, temple, ship, space station or even abandoned asteroid that your character can acquire and use as a base as well as a starting point for some side quests. Would make the universe seem a bit more interactive.
2: A more alive universe. I don't mean graphically, I mean things like histories (what was the great hyperspace war anyway?), news reports about the repercussions of significant events that the pc is part of, details of some of the factions etc. as was done in starlancer. Could be accessed through a communications room on the ebon hawk. Would add a lot of immersiveness for the less casual player imo.
3: The biggie. Conversation choices that actually matter and give the player a proper choice. I've lost track of the amount of times I've replayed a conversation in KotOR to find different outcomes only to find the only difference is a line or two of slightly different dialogue before the conversation carries on interrupted, sometimes not even that! For an example on the leviathan when Saul is torturing bastila the only difference whether you keep quiet or spill your guts is a few different lines of dialogue with Bastila.
Even worse is when the pc is railroaded into a choice they don't want to make. Mission when you're darkside is a good example. I spent the entire game corrupting her into betraying the beks, abandoning her brother and generally acting cynical. Then she sides with the republic. Fair enough, so having no wish to kill a 14 year old girl, I tried to get her to clear off with carth. But no the game wouldn't allow that as a choice so I was forced to kill her.
Both of these things detract from the game and turn it into an interactive star wars movie and give the impression the players choices don't really matter. I know the companion alignment thing is supposed to be getting changed in Kotor 2 but I dearly hope the other blinding pitfalls of Kotors conversations get a makeover as well.
Anyway there are my opinions, what does anyone else think?