For Revenge Of The Sith, in the security hologram scene with Obi-Wan & Yoda, I have just removed all reference to taking on the Emperor. They now only talk about Anakin/Vader. Since the Yoda vs. Sidious duel is gone, I needed to clear up that plothole. The scene now goes as such:

YODA: Destroy the Sith, we must.

OBI-WAN: I will not kill Anakin. He is like my brother. I cannot do it.

YODA: Twisted by the Dark Side, young Skywalker has become. The boy you trained, gone he is. Consumed by Darth Vader.

And it goes on from there, as usual.

-NJM