In responce to Darth_Sirius:
Yes, I heard something like that too, but I was thinking something more along the lines of something like 3 or 4 possible apprentice characters that have the potential to become your apprentice regardless of your alignment. Then their personality comes to influence your relationship with them as it melds or clashes with your alignment depending on how your character develops and which apprentice you chose. Then the player can be sympathetic towards an apprentice who is predisposed to the dark side alla Quigon Jin/Anakin, or one where someone dark takes an apprentice for their strength in the force, but have a conscience. Then there's a more peaceful master and eager, agreeable apprentice realtionship. That's what I think anyway.