God, this movie really had to overcomplicate things didn’t it? It was already dumb that they were bringing Palpatine back for TROS. They should’ve just went with the dumbest, most straightforward answer to how he was able to come back in universe.
"Yeah, Palpatine died but some space mosquito sucked his blood and got stuck in space amber and we were able to use that to clone him back to life. ¯_(ツ)_/¯ "
GAH!