I don't really like the sound of things because if I have a trooper and smuggler it would make the other character irrelevant for anything after leveling if I can just change classes from the same faction on one character, I would prefer something like smuggler can use agent classes but not troopers and troopers can use bounty hunter classes but not smuggler and the other way around but as for the force users just the look of the ability change such as inquisitor dark side, counselor light side or warrior dark side, knight light side. referring to this video this is purely my opinion