Wow, a lot happened here.
I don’t think I can address everyone’s points here, but in short: If we’re going for a Rey Palpatine version of the film, my go-to is the Rey as a clone concept. I think that is the best version of that story we’re going to get, so it’s well worth pursuing for a Rey Palpatine cut.
However, a Rey Palpatine cut is still kneecapped by the larger issue that this would mean that Rey isn’t nobody in this version, no matter how you slice it. And Rey coming from nothing is an absolutely essential part of what makes Rey interesting in this story.
The only other option I see to edit this movie and retain much of its existing dialogue is to reframe the Rey Palpatine revelation as a lie.
Rey’s Vision
So I’d say that we can keep the Hangar Revelation that Rey is a Palpatine, but with the caveat that this is information which comes directly from Palpatine, and isn’t presented as omniscient knowledge. It could even be that we use the Rey as a clone concept as part of the lie, in order to more clearly paint her parents as the innocent victims of Palpatine’s evil plan. The visions of Rey’s parents as good people who were killed by Ochi could then be reframed as parts of the vision that Rey had during her training, and which she is now recalling with Kylo’s goading. However, these are not memories from her childhood, but images given to her in a vision directly from Palpatine, including the image of her on the Sith throne.
“There was more to your vision, Rey. Remember it!”
This means that Palpatine now has a direct line to Rey, which is strange because she has never met him. However, Snoke was able to bridge Rey and Kylo’s minds without meeting Rey, so this means that Palpatine would be able to get to anyone if they were in contact with one who was under his influence, however briefly. This explains why Ben turned to the Dark Side: he was being trained by Luke, who had confronted Palpatine years earlier. It even gives greater threat to Luke in ROTJ, since he had already confronted Vader who was under Palpatine’s control.
As a bonus, Luke blaming himself for Ben’s turn to the Dark Side becomes completely understandable, as he may view himself as contaminated by his contact with Palpatine, necessitating quarantine on a desolate world. Rey fleeing to Luke after learning that she is contaminated with this mental link is a natural conclusion.
Kylo could explain to Rey that Palpatine is bringing Rey under his control through their mental connection, as Palpatine can already contact Kylo. Perhaps the original version of the Vader mask scene would be used here, since it shows both Rey and Kylo sharing the vision when Kylo touches the mask.
Luke’s Response
If Rey being a Palpatine is a lie, then Luke’s statement to her must change.
“What are you afraid of?”
“Myself.”
“Because you’re a Palpatine. Leia felt your darkness as well.”
This means that Luke doesn’t confirm or deny that Rey is a Palpatine, since he probably wouldn’t know either way. He merely tries to support her.
D-O’s Information
The scene between Finn and Poe could change to explain that D-O has information about Ochi’s mission that contradicts the story of Palpatine:
“This droid has a ton of information about Exegol”
“Wait, coneface?”
“D-O”
“Sorry, D-O”
“He was going to Exegol with Ochi of Bestoon.”
“Why was Ochi going there?”
“To bring a little girl he was supposed to take from Jakku, to the Emperor.”
It could be changed to:
“To bring a little girl he took from Lando Calrissian, to the Emperor.”
D-O’s reaction shot would mask the line change. This could imply that it was Lando’s daughter who was captured by Ochi, perhaps to be used as bait to lure Luke into a confrontation on Exegol. Rey would never have been on their radar.
In the reunion scene, Jannah appears to glance down at something that Lando could be holding in his hand. If there was an insert shot of Lando holding a photo of himself and his daughter, it would put a button on this subplot which was originally meant to be in the film, as well as make it clear what Lando’s intentions are in this scene.
Finn’s Response
Because Finn knows that Ochi is unconnected with the deaths of Rey’s parents due to D-O’s information, he is able to convey this to Rey. When Rey reaches out to the spirits of the Jedi, she is greeted not by the Jedi, but by the voice of Finn, who tells her what she needs to know: that she wasn’t a Palpatine after all.
“Rey, you know the truth. Palpatine isn’t your family…we are. We are all with you…forever.”
This is why Palpatine says that she is nothing after this point, that she is merely a scavenger girl who is no match for the power in him.
Final Confrontation Reorder
-Rey arrives on Exegol, meets Palpatine.
-Poe arrives on Exegol, the battle begins.
-Finn lands on the Command Ship.
-Palpatine makes an ultimatum, Rey prepares to strike him down.
-Finn destroys the first beacon.
-Ben arrives on Exegol, battle with the Knights of Ren/Praetorian Guards.
-Civilian Fleet arrives.
-Finn destroys the Command Ship, is rescued by the Falcon.
-Rey and Ben defeat their enemies, confront Palpatine, are drained of Force, Palpatine rises and attacks the fleet, Rey calls out to the Jedi.
-Finn responds from within the Falcon, tells her about her past.
-Rey’s friends join Finn in helping Rey, who confronts Palpatine for the last time.
-The fleet gains a reprieve, attacks one last time.
-Palpatine is destroyed, Rey dies, Ben returns and restores her.