Replace the Hayden Christensen force ghost with better Hayden footage, with signs of aging, a less cringey facial expression and maybe his ROTS clothes.
Maybe replace a secondary First Order officer in TFA or TLJ with Allegiant General Pryde (or even an Imperial officer in the OT if there’s footage of young Richard E. Grant).
Deepfake the bearded Rebel soldier on Endor with aged-up Temuera Morrison (Captain Rex). I’ve seen only concept stills for this idea.
After the Kenobi series comes out, deepfake uncle Owen and aunt Beru with their middle-aged selves or at the very least redub them.
Replace the infamous Fake Windu at the ending of TPM.
