Still from what I've heard from the many articles I've read there is definitely enough scenes deleted (yet most of them obviously still not released) to make full star wars length fan edits of the PT movies. A scene I would specifically want to see would be:
http://insidemovies.ew.com/2012/02/11/star-wars-deleted-scene-revenge-of-the-sith-jar-jar-binks/
It would really help to refine jar-jar's stupid character, plus it helps to add a darker mood to ROTS.