Bingowings said:

Taking a few of the furry chaps from ROTS or filming a good pair of fan costumes and adding them into the Endor battle should be possible.

ROTS scoutroopers look almost the same than ROTJ isn't it? (apart that ROTS troopers are camouflaged...

And 'bout setting the action in Coruscant, or anywhere, is THAT impossible? I mean, for a single editor, well, it could be. But what if somehow a team is formed with the common goal of rotoscoping the necessary scenes, dividing the tasks? Once the work is finished they freely share the After Effects files between them and everyone does with those file whatever they want. I'm useless with After Efects, though it would be nice the idea of having a common source of resources just like LFL is doing with the soundboards (besides the movies, wich are utterly the common source).