Anyone who thinks they will ignore/retcon/etc the prequels hasn't been following this franchise post-Disney deal at all. Or a better way to put it, the opposite of everything Gambit 1138 says is true. He is well known in the Star Wars threads for being wrong about basically everything.
One of the leads of the Star Wars Story Group who are basically the collective Kevin Feige over at Lucasfilm MOCKED someone on Facebook for suggesting the idea they'd retcon Episode II and declared Boba Fett would always be a clone of Jango Fett, that Episode II is not going anywhere.
The prequels are heavily referenced in the new on-going Rebels TV series, heavily referenced in the new canonical Marvel comics, and so on.
Lucasfilm even put out a press statement just last year declaring the prequels "immovable objects" in the canon that all future stories have to align to.