With the recent sort of "announcement" regarding Disney releasing the original Star Wars trilogy with no edits made me wonder if it was possible for some sort of super release where you could create your ultimate Star Wars movie?
Well, most of this is mooted by the fact that the rumored "no edits" release is simply not happening--except if you mean in the geological sense that these rumors that have been flying around for twenty years now and may actually come true in another fifty.
However, what you'd normally be referring to is seamless branching. i.e. you're watching stream 1 for the first 19 minutes, and then the disc jumps to stream 2 for a few more minutes, then back to stream 1 for a bit, then over to stream 3, without the user being aware of the change-overs. For other movies, this is technically possible. You can get alternate scenes taken in or out, etc, and it's just a matter of menu authoring to determine how fancy and convoluted you want the path to be.
The problem with Star Wars is that while people focus on fairly specific video and audio changes they don't like, every single frame of the film has been altered. Even in a scene where, superficially, nothing may look like it was changed, the jump in color timing would be jarring and obvious. Similarly the audio--even with no sound effects, music, or dialogue changes, the wildly differing mixing levels, EQ settings, etc would be rather awful to jump between.
For example, an original video frame would look more-or-less like this (
reference):
...while a "this scene wasn't changed at all" Special Edition version of the frame looks like this:
Basically, an "original" version with the ability to switch between 77 crawl and 81 crawl, or 77 audio or 85 audio, etc, is completely doable. But the 97 changes changed so much, and the 04 changes even more so, that switching between pre-SE and SE isn't going to be pleasant, unless one of them is significantly altered to match the other.
But, on the positive side, a proper HD release of the original versions would not need any of the cleanup from the SE's--much of that "dated look" comes from the state of early 90's home video transfers, not from the actual film. If anything, the SE's will look much more dated than the originals--practical effects have a much longer shelf life than CGI.