I could see Disney doing some kind of prequel remake after the ST. I have no fear that Disney will pull a George Lucas and try to erase things from film history. If they remake them the originals will still be available. Also, I can guarantee that Disney won't do anymore SE changes to the prequels or the OT. I could MAYBE see them making CGI Jabba look less horrible, and I also wouldn't be surprised if the hated things like Han shooting second and Vader's no get cut from the next release as well. Honestly though, if they're going to bother with that, they'd probably just release the OUT alongside the SE and call it good.