I want a better and more interactive storyline. I mean, if you turn Dark Side, wouldn't it make sense for your character to actually join the sith and kick the republic?
A new engine is needed.
I think it's about time for whoever develops the game to steer away from the d20 rules. I mean, LA should have control over Wizards, so I don't think it would create legal-ish problems. One of the flaws of the d20 system is of course the armours (like someone already mentioned, it doesn't make sense for a heavy armoured guy to dodge more easily). The biggest flaw though is of course dual-wielding. There should be a dexterity requirement (like ambidexterity in 3.0 DnD) for the feats; the way it is now, it's too easy to use a staff or duals.
~Dark Cupcake of the Sith