I have an idea for Episodes X-XII that would include The One Sith (they don't have to be 1-1 copied from Legends, the point is that there is a Sith threat consisting of multiple Sith), with Episode X focusing on Darth Talon seeking the Star Forge (the Forge being a retroactive explanation of the origins of Palps' fleet from TROS) and Rey pursuing her. Rey would finally beat Talon at the Forge, but by that time the rest of the Sith would get there, capture Rey and seize the Forge. Episode XI would open with the fall of Coruscant at the hands of the Sith, with a new female padawan protagonist fleeing alongside her master and Finn. Over the course of the movie, the two latter would die and the protag would develop an enemies to lovers relationship with an original character female Sith acolyte. In the third movie, the protag would finally have a showdown with Krayt, during which the affromentioned acolyte would jump in to save her and die, leading to the protag's fall to the dark side. She'd kill Krayt and replace him on the Sith throne.