I just don’t know how possible it is to remove Rey’s parents from the movie? If its possible i would do it, but Ochi’s ship design is very explicitly from Force Awakens so it might be odd to have the same ship without the backstory?
It would be difficult for a number of reasons, that, but also quite a bit of dialogue is had talking about the fact that Palpatine had her parents killed, from Kylo but then later from Rey to Finn. In my mind, leaving it in is the much cleaner solution. Palpatine sensed her power early and wanted her dead, and ended up killing her parents looking for her. This fuels Rey’s anger and spurns her to search for Palpatine and kill him (as she states in the film). Removing that entirely would create a lot of problems.
The first Rey and Palpatine scene will already be a nightmare ‘My granddaughter…’ ‘Empress Palpatine’ etc.
Arguably, you could keep “Empress Palpatine,” because Palpatine will be taking over her body, right? Might actually make an interesting parallel to the last scene, here Palpatine is goading her to adopt his name, essentially.