Yeah, pretty much, there's still some SE stuff left, like two or three digital animals in SW and some of the windows in cloud city and some other minor details, but most of the SE is gone. All 3 are colour corrected. For each film, the whole cut was conformed to be in sync with the soundmixes of the original versions.

Here are videos showing the changes in SW and TESB, what isn't in the videos is kept the same as SE:

http://www.youtube.com/watch?v=tZ2BKnqVcyI

http://www.youtube.com/watch?v=SquVsUORlTo

and here's what's changed in Jedi:

Lapti Nek, the original Sarlacc pit scene and the ending celebration (including the Anakin ghost) were restored very close to the original version.

Some videos can be found in the first post.