I think it’s still too abrupt for a Star Wars film, maybe we can hear an officer in the background say something like “My lord your ship is ready” - hold on to Kylo’s face and zoom - use a reversed shot of Kylo’s shuttle approaching the Executer from TFA with Mustafar in the background instead of Jakku - dark shuttle entering Mustafar’s atmosphere(rogue one) - slaughter.
It all sounds well and good, but completely out of my league lol