In somewhat related news... just finished the Darth Revan book. Those of you who enjoyed KOTOR I and KOTOR II should definitely take a look at it. Definitely fleshes out the story of the game, which I feel is ALWAYS the beauty of a Bioware game.
Several concepts that I think will have an effect in TOR:
Spoiler!
1. The Emperor sounds almost similar to Darth Nihilus from Kotor II. He's a Devourer of Worlds who also uses the life force of others to power himself like the Emperor in Dark Empire. Should be fun.
2. Expect the Exile's appearance in TOR (if it happens) to be more Alec Guiness 1980 and less Alec Guiness 1977.
3. Revan lives! As a prisoner of the emperor. Rescuing Revan will probably will be a Republic-side high level quest close to end game.
4. The Shan line is, indeed, founded by Revan+Bastila Shan. No wonder Satele Shan is such a bad ass.
5. Expect the Sith to be the Sith. Backstabbing, untrustworthy, etc.