A fine idea, but where would it go?
JEDIT: It would be grand if it could be shown on Canto Bight, that way the Broom Boy scene would make more sense. There’s also some extra deleted footage of that location, though I don’t know if any would be suitable. You would also probably need a line from either Kylo or Hux stating ‘Let the galaxy see their final moments’ or something like that.