JEDIT: if the Rey Palpantine angle is kept perhaps Adam Driver could taunt this instead throughout his “noboby” taunts with Rey in TLJ. As I’ve suggested elsewhere it might also be wise to have him travel to Mustafar and Exegol prior to killing Snoke and his Praetorians. TLJ Luke can also be redubbed to foreshadow Palpantines return perhaps.

If this is done and works, then a TRoS extended cut would be in order rather than a massive overhaul (some conservative trims still needed ofc)