That’s a great idea.
The one’s I’ve had are:
Deepfake Genevive O’Reily into Mon Mothma’s brief scene in ROTJ given that she’s now the face of Mon Mothma for most people.
Put Shmi’s tombstone in the Lars homestead.
Add Sith whispers to Palpatine’s throne room when Luke nearly kills Vader (to keep that motif and also because the Sith wayfinder is next door).