Preview:‘Superman’ follow-up ‘Man of Tomorrow’ is due in 2027.David Corenswet and Nicholas Hoult are expected to return.James Gunn is writing and directing.It might not have been a completely soaraway success at the box office this summer, but ‘Superman’, DC Studios co-chief James Gunn’s cinematic kick off to his new take on the comic book universe certainly performed well enough that a follow-up is now in the works.