Bill Hunt of The Digital Bits had this to say back in May
Of course, Disney is going to release the original, unaltered films!
Are you kidding? The folks at Disney have $4 billion riding on this little investment and they aren’t stupid. The only reason the original versions haven’t been properly released before this is that George Lucas didn’t want it to happen… but Lucas is no longer in control of such decisions. There’s simply no way Disney would have paid $4 billion without the right to do what they wanted to with this franchise. And what they want to do is exploit the crap out of it for years to come.
As for Fox being a problem somehow, does anyone really think Fox wouldn’t appreciate the chance to make some easy cash releasing the original versions in partnership with Disney? Where there’s a will, there’s a way... and where there’s this much money to be made, you can bet they’ll find a way. Besides, if Fox can work out its differences with Warner Bros. to finally release classic TV Batman on Blu-ray and DVD, Fox should have no problem striking a deal with Disney on this.
Bottom line: We’d be absolutely shocked if the original, unaltered Star Wars films don’t A) return to theaters, B) get released on Blu-ray and DVD, or C) both, prior to the theatrical debut of Episode VII in December 2015. I mean seriously. You don’t need to be a Jedi or a Sith to see that the Force is strong in this rumor.
I don't think the Fox thing is as big a roadblock as other people seem to think it is, either.
This whole scenario makes a lot of sense to me. Everyone stands to win something.