all good ideas.
i think there should be more emphasis on lightsaber forms. force forms should be completely separate and less of them. DOuble bladed/ dual sabers should have unique forms. and you should b able to get so many forms. there are 7 saber forms so instead of getting like all of them you should get 2 or 3, and specialize completely in one of them. same for force forms you should only get 1 or 2 and it doesnt matter about your class.
also music - i thought kotor 2 music was better than 1 but i think kotor 3 should have music from kotor 2 and from the films, like the RotS game had music from kotor 2. and of course make some new music also.
PC should be revan and/or exile. doesnt matter to me if they start at level 1 again, maybe just give a couple of extra feats/powers at the start to make up for it like exile gets all combat feats free on level 1. stories should be bought to a close so kotor 4 (if there ever is one) should start in completely new era.
Hoods are definitley a necessary thing as are customisable lightsaber hilts