Alot of these things have already been covered. This is an RPG, not an FPS. No defend button or attack button nonsense. The only good utilized system I can think of offhand like that would probably be Legend of Dragoon (they sorta have attack button and that works). Never put the attack button in KOTOR. NEVER.
You shouldn't be able to maximize all your force powers. I mean, where's the choice in that. That would make the game alot more boring. Especially if you can still maximize all as a guardian. (consulars should only get around 2/3-3/4 powers maximized if that). The swoop racing idea has been mentioned alot. ALOT. Infact there has been at least one whole thread dedicated to it.
If the game gets too long it gets boring no matter how good it is.If they have 1.5 times as many powers in TSL, you're going to need like 80 levels to max it out. That would be awful. Besides, 80 LEVELS!!!!!!!!
The realistic faces would be nice, but only if the team has extra time left over. i doubt that will happen.