There was speculation about this on Reddit the other day as well. Thread in question: https://www.reddit.com/r/RedLetterMedia/comments/5wb6kh/unaltered_version_of_star_wars/

Basically this guy noticed that the soundtrack listing for RoTJ on iTunes replaced Jedi Rocks with Lapti Nek, and Victory Celebration with Yub Nub. He speculates that it’s in preparation for an unaltered release of the movie.

I was skeptical, but combined with what’s already been posted in this thread, it does seem to make the evidence a little more compelling.