A report surfaced in September 2015 that claimed Man of Steel 2 would feature Supergirl, Brainiac and another villain, Bizarro, but that was never confirmed.
Throughout the years, we have heard that there will be a traditional Man of Steel sequel, although no details have been officially released yet.
Henry Cavill will most likely return as Superman, but it remains to be seen what other Man of Steel and/or Justice League characters will be brought back for Man of Steel 2.
“The sequel to Man of Steel has been developing in secret.