I'm afraid I consider most of your ideas to be fatally flawed, Corthan.
SP source code? What? Why? Where?
More game modes are always good, but "Invisible Jedi Master?"
There are no "death blows" anymore, really. By patch 1.04, Backstab and DFA were fixed properly. All that will win a duel now, is skill.
Random damage? where's the skill in that? That'd just make duels random and pointless. A duel is supposed to be a test of one's skill against the skill of an opponent, not "Hooray, I accidentally hit you in the head! I R LEEET!!!11"
As for Raven, they gave JO their very best shot. It's not their fault they were swayed by the masters of the Dark Side. (Fanboys.)