4. Illegal Alien
One thing that Man of Steel treated much differently than previous Superman movies was the character’s status as an alien. Back when Superman was created in 1938, aliens were hardly party of the mainstream zeitgeist; however, in our sci-fi saturated modern society, the question of alien encounter is more “when” than “if.” In that context, Man of Steel had to treat the revelation of an extraterrestrial superpowered being from a more cynical modern perspective. But a world where Superman isn’t automatically established as a globally-accepted do-gooder deity could be interesting for Dawn of Justice.
In the famous graphic novel Kingdom Come, we saw a vision of the near future where concerns about out of control metahumans force Bruce Wayne and Lex Luthor into an uneasy alliance in the name of defending humanity. That same idea could (and likely will) trickle down to Batman V Superman, if Superman’s handling of Zod has made him as feared and hated as he is loved.
Indeed “The Alien” nature of Superman could provide some great narrative thrust, if the story involves Batman’s views on “humanity,” and his ultimate pivot from the side of Lex to the side of Kal-El. (Side note: that would also be a pretty meta way to hopefully pull a lot of skeptical fans to the side of this new DC Universe.)