This comes up every now and again:
1) Rights issues: Fox still owns the distribution rights to the Original Trilogy til 2020, I believe, and Star Wars (1977) in perpetuity. Disney would have to strike a deal with Fox regardless in order to release them
2) The negative used in the 2004 Lowry scans is from the 1997 Special Editions. The Special Edition negatives have those "fixes" embedded within. A new scan would have to come from those same negatives - relying on fan copies is iffy, as fans aren't supposed to still HAVE those copies, so it's doubtful they'd be willing to volunteer their prints knowing that Lucasfilm would just keep them once they got them.
3) The composite elements for the original effects work DO apparently reside at ILM still, but the problem is you'd have to re-scan the SE negatives, and then re-composite the original elements. OR, you'd have to digitally re-create the original effects in the computer and layer them over the top of the current transfers.
Either way, there's a lot of money that would have to go into any of the above before a blu-ray release of the originals could be released, and it's still up in the air as to whether Disney/Lucasfilm considers the potential return on investment to be worth that cost, especially when there's over a decade's worth of proof that the large majority of consumers don't care enough about the changes (or even LIKE them) to make the Original Versions valuable to anything more than a fraction of the potential audience.
Heh. Good point. I don't. I make it a point to just call it Star Wars, even when I know that might end up confusing people who think I'm talking about the series entire.
But that movie is fucking called STAR WARS.
I also don't celebrate May the 4th. There's enough fake-ass holidays out there without celebrating one based on a stupid pun that makes it sound like you're trying to say "May the Force be with you" but with George Lucas' dick in your mouth