In some way, that kind of happened with the "Snyder cut", although the story is more complex, in that the original version of the movie never happened, a different movie was made, and the original one ended up being done, but it was also influenced by what was done for the first release and the subsequent reviews.

Nah, then nothing would ever be “finished”. Nothing is perfect.

I’d rather have things released under someone’s vision and then just left alone, than getting random updates, especially from feedback.

I believe Titanic has version 1.1 with better visual effects and correct star positions (lets call it a "change request" from Tyson)

Counterpoint: Star Wars Special Editions.

Those were fucked up 1.1 versions though, not 2.0. And nobody was asking for them.