Looking at Zac Efron as Johnny Storm, I had never thought of it, but it totally works. Zac Efron has shown in more than a few movies that he can bring a cool, cocky attitude to his characters, and it would be fun to see the members of the team wrangling this hothead. I think we all assume that at some point, John Cena, just like The Rock, will make his way into comic book movies, so it’s just a matter of when and which one. I expect an MCU Fantastic Four to take a really fun approach to the characters, part of which would involve humor, and John Cena is continuing to prove his comedy chops in films like Blockers. The Thing would almost certainly be all CGI, but Cena is a fun choice to take on Ben Grimm.