You assume Disney would make good prequel movies. You assume too much. I don’t think TFA is good (watchable, fun, fast paced, action packed, nicely done à la “Star Trek 2009”: ok, but “good” like “Star Wars” or “Empire Strikes Back”, hell no !). The PT era cannot really be improved (the all concept of showing prior events is dumb; we didn’t need it to watch the OT for 22 years, we still don’t need it), even by rewritting it. GL failure is seeded since RETURN OF THE JEDI, the backstory of Anakin’s fall is too complex to make a truly good movie out of it (so the guy is a gifted pilot, a great Jedi, but he is seduced by the dark side which is embodied by an old man with yellow teeth and a cliché evil look, who happens to rule the Empire; he got his ass kicked and his children were dispatched just under his nose - I mean, his son is called Skywalker ! - and the guy never had a clue about it in 20 years ? Come on !). Another adaptation could be better (we can be pretty sure it would be), but I would’nt see the point of it since RETURN OF THE JEDI should be remade as well.
That being said, I would love to see movies set in the PT era (or between both trilogies) that capture the feeling of the OT with elements of the PT (like a side-PT, with unrelated characters who live their adventures in the outer rim). In a way, REBELS is exactly trying to do that. And it’s not really a good show (it’s watchable though), that’s why I don’t think that Disney could make a PT reboot that would please the fan base (fan base which is a little bit mixed about TFA). So, I guess, it’s time to move on: the PT exists (and fanedits improve them), Disney is unlikely to reboot them : TFA contains at least 3 references to the PT era (clone troopers, the balance of the Force, McGregor’s voice); REBELS is using plot elements from the CLONE WARS tv series; a recent REBELS episode has stated that “a huge weapon” was being built near Geonosis - take a guess -; ROGUE ONE might give a few nods to the PT era as well. And don’t forget that the 2011 bluray version of the OT is canon to Disney (which means: Hayden’s ghost - who was supposed to be in TFA -, cameo appareance of Naboo, Coruscant, a Dug).
So: “DO YOU THINK DISNEY WILL REMAKE THE PREQUELS?”
No, I don’t. They will probably make spin-off movies that can fill the PT-era gaps (convenient for those who hate the PT), but Anakin’s fall will never be remade. And we are not sure at all these movies will be good.