For the most part, nobody working on Phase 4 of the Marvel Cinematic Universe needs to write themselves out of any corners. All the characters who will be returning are left in places where they can easily go in basically any direction. All of the characters who will be debuting can obviously start off wherever they need to. But we can be sure that before long all these characters will go through massive changes that will require creative solutions. As long as Marvel keeps thriving on the challenge, we’ll likely only continue to see massive success.