None taken, and sorry for your head. I just wrote what Lucas said, and offered a hypothesis based on other facts about him. After he finished ROTJ he said he wouldn't do the prequels, but he'd like to. Then he started making them, Mace Windu was the first cahr he came up for Star Wars, if he visioned him like a traitor, that idea must probably be kicking around in his brain, since he hasn't written, officially, the script, he may yet be able to make Windu a traitor. Somewhere he said that Widnu's death will be a)spectacular or b) a complete surprise. For A) we'll probably see him sacrificing himself so Yoda can escape, he'll more likely take on Vader. For B) he needs to be at the right moment in the right place and betray Yoda and Kenobi, those two will escape and on the way kill Windu.