I've gotten an idea as to how to incorporate lightsaber forms into KotOR, but it needs some refinement.
My thought is to use the jedi party members. The lightsaber form you want is selected on Dantooine (personality quiz, like with Dorak?), then during your mission you spar with your companion to get the second level (maybe have to beat them a few times in a row? Or maybe some sidequest on Korriban? I'm open to suggestions on this one). Then, for the third level, you duel Bastilla on the Rakata temple.
Who trains what is like this;
Bastilla - Shii-Cho/Ataru
Juhani - Makashi/Shien(Djem-So as well)
Jolee - Niman/Soresu
(I've got no idea how you could learn Juyo and keep it believable. I'm open to suggestions on this as well).
What does everyone think?
It is better to have it and not need it than to need it and not have it.