Kingdom Come

In the comics, Superman has retreated from the life of superheroic deeds after the death of Lois Lane. However, he is forced to come back after Magog kills Joker (who killed Lois) and is acquitted. He returns because this isn’t the right way and everybody must be equal in the face of justice.
So this would be quite an actual theme to adapt for the DCEU. Obviously, the Man of Steel sequel shouldn’t bring in the many characters that appear in this comic book storyline. Instead, it should focus on what made the storyline so successful in the first place.
So maybe it won’t be Magog the villain and maybe there shouldn’t be a Justice League, Outsiders, and the Mankind Liberation Front all included in the movie. Instead, maybe the Man of Steel sequel should end with the world learning that nuclear bombs can do no good.
And Superman, once again, should become the symbol of everything good in the world.
