I could see Cad Bane and Boba Fett’s remaining content being retrofit into the early Empire era, especially given the current resurgence of Boba. The Sith Temple under Coruscant arc could possible be reused - hopefully we’ll finally be able to see the ex-Jedi Temple as the Imperial Palace in something other than comics, books and tabletop RPG stuff. I do have my doubts that Yoda will sneak away from Dagobah for some high intensity battles though (at least, I really, really hope he doesn’t…). It will forever remain a mystery how he came to have good relations with the Wookiees.