
The World Between Worlds should've been used to bring back the Emperor instead of Cloning
Idk if this is a repost, but I'm re-watching Rebels and I think the most interesting way they could've brought back the Emperor in TROS would've been the WBW. I feel like it would've brought up many more interesting plot points and characters to the story overall.
Logically, it would've made sense that between the 5 years between Rebels and Episode 6, Palpatine would've found another portal, and would've claimed it. He would then use it after 6 to begin plundering the timeline of characters and technology, to rebuild a new Empire, one stronger and more loyal to him. He would do this over changing the past, as the WBW would show him a vision of him winning and ruling the galaxy once again with his fleet from Exegol.
They could've brought back other important characters throughout the series. Characters loyal to the emperor like Tarkin could've re-appeared, creating an even more powerful threat than just a fleet of mini-death Stars.
The Resistance could also then use that same portal, to gather strong allies, who's deaths would've been ambiguous across the timeline. Theoretically, it could've also brought back Luke from the dead, and replaces his scene on Ahch-To with Yoda, explaining how the Emperor lived, and that Rey could save others like Chewbacca, who's deaths could not have happened.
Now I'm sure there are advantages and disadvantages to this. First of all, this can create a more interesting story for Rey. Rey started as a nobody, and frankly, should've stayed that way. It could've shown, along with Sabine in Ahsoka, that anyone can be a Jedi, they simply need to open themselves to the force. Second of all, the fight on the Death Star, could've happened inside the WBW, and a doorway would've been what changed Kylo's perspective, when he saw a vision of how much his father and mother cared for him.
The only real problem with this idea is it's recency to when the movie was written. It was probably written at the same time, or shortly after this episode came out. The World Between Worlds was such a new concept, it would've been hard to be able to write a compelling story like that with such a new and mysterious concept.
Now I'm going to explain one way the movie could go that changes as little of the story as possible:
Using the changes made in point 3, along with an appearance from Hayden Christensen's ghost Anakin at the end of the movie. Rey, Ben Solo, Luke, and Anakin all defeating the Emperor. That would've kept Anakin's destiny as the chosen one to bring balance, along with his legacy that his son and daughter created. Rey's devotion and bravery, would've helped her feel at home with the Skywalkers, accepting the last name, creating Rey Skywalker. Finally, the ending scene would be the same with Rey burying Leia's lightsaber on Tatooine, but now with Ben, and Luke at her side, as a final goodbye to Leia and Carrie Fisher.