There's actually a bit of that already there-

Weyland, where the C'baoth clone came from and Thrawn gained his cloaking and cloning tech, is seen at the end of Bad Batch season one:

https://starwars.fandom.com/wiki/Weyland


and Palpatine has (presumably) Luke's hand on Exegol, at least at the time between ESB and ROTJ:

https://www.digitalspy.com/movies/a3...l-darth-vader/