Jon Favreau and Dave Filoni at Lucasfilm have already retconned the last three (bad) Star Wars movies and placed them in an alternate timeline. They did it right under Kathleen Kennedy’s nose with the new canon of The Mandalorian and Star Wars Rebels.
Dave Filoni is the hand picked apprentice of George Lucas and there is no way he was going to let Rian Johnson and Kathleen Kennedy undo George Lucas’s legacy. No more blue moof milker Luke. This video explains: