Also a suggestion: Maybe add Palpatine’s laugh somewhere in Rey’s force vision in Episode VII. It might be too on the nose but it could be cool if you heard it when we see Rey’s parents leaving her on Jakku.
I was thinking of something similar for my TFA edit, it’s also a little too on the nose but it could work if done right.
I thought that I could add Palpatine’s line:
“Once more the Sith will rule the galaxy!” from RotS into Rey’s vision.
https://www.youtube.com/watch?v=m3sxDlDxzac
Since at that point in the timeline Palpatine was preparing his return and the Sith ruling the galaxy once again.
Just a thought.