As for what Ron Howard had to reshoot on Solo: A Star Wars Story, there weren’t very many new scenes.
The source claims that Howard was doing shot-for-shot remakes of what Phil Lord and Chris Miller had already attempted.
Solo: A Star Wars Story is only a few months away.
Plus, The Last Jedi didn’t perform as well as the studio wanted, so they’re taking extra precautions to make sure that Solo: A Star Wars Story is the best Star Wars movie that they can possibly put out.