Historically (now), if Star Wars hasn't shown a character's dead body, then they are fair game to bring back. This is most obviously true with Palpatine's resurrection in The Rise of Skywalker ...

Now, that moment is finally being brought into official Star Wars canon through Star Wars: The Rise of Skywalker ... meets the resurrected Palpatine and presumably sitting down to play a round ...

Disney finally showed off the first footage from Star Wars: Episode IX at Star Wars Celebration. The film, titled "The Rise ... Luke Skywalker. Also returning? Ian McDiarmid as Emperor Palpatine.

and by crowning a Palpatine as the last living Skywalker in the end, Abrams suggests the same. Indeed, Abrams wanted The Rise of Skywalker to serve as a conclusion to all nine Star Wars episodes ...