Not bad ideas at all. It's important to bear in mind that things like that are a lot of work, though. Not just VO for dialogue choices, or reworking all restricted gear, or bug testing alignment based decisions, or creating/altering/bug testing/balancing alignment based powers, but all of those things in addition to the bug testing/balancing/VO work for the game as it was.. SWTOR would've been months, if not years, later releasing.
I don't know if the majority would want to sit for that. I wouldn't, even though I'd love to have it. I'm with you on the crystals, at least. That's dumb.
Edit; in fact, we could compound the complications by stipulating that a dark side jedi wouldn't use the same dark side powers as a dark side sith. Or, that a dark side jedi is more like a grey jedi, and deserves his own powers. Would that be shared with light side sith? Would sith be locked out from lightside powers? They would probably mirror the powers, then. Would that even be worth waiting for? etc.
Fun ideas anyway.