Frankly, I find the notion that (with all due respect to Adywan) a revised edition could/should be considered definitive while the original edition is still in existence both ridiculous AND scary.
"The background of Mona Lisa needs more HDR and her face doesn't really fit contemporary beauty standards. Needs more duckface too. Let's fix that. There, I fixed it. Now it's a lot better. This revision is the definitive version now. Enjoy."
As most of us know, this kind of revisionism is bad enough when practised by the artist (at least when no options are given). A revision, made by a fan with numerous judgement calls (good or bad, that's irrelevant) can be nice and possibly more enjoyable than the artists own revision if more thought is put into it (like Ady's version). If someone enjoys it more than the actual film then fine. Very strange but fine. You can call it "the definitive version for me in terms of my own personal enjoyment". Calling it simply "definitive" is madness.
If I were to think that Gone With the Wind needs more borderline hardcore sex scenes in keeping with contemporary trends, and someone would produce such an edit, I'd enjoy that more. But if I were to say "this is obviously better than the original, why are you guys so crazy about the original version?" to anyone serious about cinema, I would undoubtly get some strange looks.
What irks me is the mindset that produces comments like "I consider this revision the definitive version". If more people start thinking the same way, mankinds entire cultural history, heritage and art itself is at risk. If this mindset is at large, it can only lead to increasing neglect of works of art in their original "as is" form. No other form can be called definitive (unless, of course, the orignal is destroyed. In that case a version closest to the original can be called definitive, I suppose).
Most films made in the silent era are gone forever, partly because of fires in storage facilities and partly because they very considered dated and no effort was made to preserve them. I hope mankind does not allow such an immeasurable loss to happen again.
tl;dr: Please do not use the term "definitive" describing a revision when the phrase "a version I enjoy more because I'm overtly sensitive to inherent imperfections and dated elements in a work of art" is more appropriate. Unless you are trolling/trying to cause a stir.