I think if Obsidian establishes itself with kotor 2, it will make awesome original games. I think we should let them make their own ideas, then call for classics.
We should also be able to find various lightsaber hilts in the game. Just like the ones in Jedi Academy. Or when we first get our lightsaber, we could choose a certain hilt and find new ones along the way. Be able to dismember a lightsaber to change a hilt.
I believe more of the original star wars music should be used this time. It generates a better feel. For example, when I saw the first oficial trailer for kotor 2, it made me want to play it a lot more because the dark side music was playing in the background. Please consider this.