Okay, I threw together a quick edit of what I had in mind for the ending of Episode III, just to show how it works. This was thrown together in just a little over five minutes so it is pretty rough, and it needs a lot of work on the music, but if you watch it you will get the idea. I was actually pleased to see it fit together pretty well, better than I had hoped. I actually don't think it would turn out to be that abrupt of an ending after all.

ROTS ending

Another part I am trying a few things with to see what can be done to improve is the death of Windu and the turn of Anakin. I played around with that scene a little today, and I found a few things that might improve that scene a little.