This rumor seems to surface about once a year or so since Disney bought the rights. I'm deeply skeptical.
1) George says that the SE's are the definitive versions. Disney got the rights from George and wants to play nice. I don't see them going against the SE's any more than I see them doing anything to contradict the prequels.
2) I'm pretty sure that Disney owns the rights to the Star Wars brand and to future Star Wars movies, but that Fox retains the right to distribute the classic films. That's why Bob Iger was keen on creating new movies as part of the deal; the Mouse House doesn't get nearly as much money just from the re-releases done by another studio. Disney wants films that it can own outright. (I could be wrong on this, though.)
3) Why is it that every report about a restoration on the Star Wars movies always features some part about how the people working on it were shocked to find the negatives in such bad shape? These aren't some obscure films; these are extremely popular movies that have been restored over and over again over the past 20 years or so. Are we really to believe that each time, no one thought to take better care of the original prints for the next time around?
4) The original source for this rumor is comicbook.com, who I've never heard of before and who doesn't have a reputation like some other sites. And "Original Star Wars movies to be released!" is real easy link bait to drive up hits on their site. If it doesn't happen, they can just claim that someone at Lucasfilm must have changed their minds.
Anyway, nothing is impossible. I never thought I'd see Sonic the Hedgehog games coming out on a Nintendo system. Heck, I never thought I'd be living in an age where SW Ep. VII was being filmed. So this still could happen. But I'm not holding my breath.
At any rate, thanks for sharing, elbarto!