I personally believe there will be no restoration of the theatrical versions. I think the primary focus will be to release the Star Wars Saga in 3D for the 40th anniversary. The prequels have now been converted to 3D. The original trilogy is next. I believe these conversions will be personally approved by George Lucas. I don't think Lucasfilm will want to "disrespect" the founder of the company.

I think the best we can hope for is that they will not fight the release of Star Wars Legacy through unofficial channels. They might even accept a copy for their archives, but I believe Lucasfilm will officially keep treating these versions as curiosities, but not as canon.