I don't think Lucasfilm will ever release any versions but the original and the current version. I think this because it's much easier to just have two versions, the original, and the director's cut. Disney does not want any of their customers to be confused about which version to watch, especially when the '97 and '11 versions are pretty much the same, the newest ones just have more prequel crap shoved into them, and I think 99% of people who like the Special Editions don't mind that anyway. As for the people who just put up with the SE's because it's their only option, I'd assume they would rather just watch the original versions than a more dated version of the SE. There is LITERALLY no market for it, and there is a higher chance of seeing the Holiday Special released than there is the 97 Special Edition. Even if they do release some 300 dollar comprehensive set with everything Star Wars related in it I'd still be surprised if it's included, although I will admit that on the off chance it is released, it will only be released in a set like that.