BedeHistory731, given that Palpatine is returning in IX, then here’s my suggestions:
When Luke attacks Vader, he slashes off his helmet, as we see his scarred head. After seeing his scarred head and cut-off mechanical hand, the “I will never turn to the Dark Side!” scene and Palpatine electrocuting Luke stays the same, but Vader fights off Palpatine and as Luke escapes. Vader slashes Palpatine, as we discover that the latter is actually a Force projection (like Luke in TLJ, except that Palpatine is able to interact with other things as a projection), before he continues electrocuting Vader until he is defeated. Palpatine speaks with the remaining Imperials and orders them to meet him in the Unknown Regions to rebuild the Empire (Vader witnesses the hologram discussion as he dies).
Palpatine’s flagship is destroyed, as the remaining Imperials flee to the Unknown Regions. Upon returning to the Wookie homeworld, Anakin’s ghost appears to Luke and warns him that Palpatine will return and the Empire will rebuild in the Unknown Regions. Luke tells Leia and Han about this, as he comes up with a plan to rebuild the Jedi Order while Han and Leia reform the Republic to fight against the rebuilt Empire as it becomes stronger than ever. This would set up the sequel trilogy.
In the sequel trilogy, we have no Snoke: instead, it is Sidious, possibly on the verge of death. When Kylo kills Sidious in TLJ, Sidious’ spirit takes possession of someone (maybe Hux or one of the Knights of Ren or even a Sith acolyte), and the final battle in IX has Rey and Kylo fighting off Sidious and the Knights of Ren (who were loyal to him all along). The Sith acolyte is killed, and, just like in an old post-teaser rumor, takes possession of Kylo, who urges Rey to kill him, and sacrifices himself to get rid of Sidious once and for all.
(That way, we won’t have the whole “bringing back Sidious” thing undermine Anakin’s sacrifice. Also I plan on making remakes for the Star Wars films [not rewrites, but actual remakes] with this)
What do you think?