Genre:
Action / Sci-Fi / Fantasy 

Narrative:
From the trailer you can tell that the narrative is about conflict, fight between Batman and Superman for power. There could be a story twist since the trailer doesn't show or give a lot of detail about the movie.

Character:
The main characters is Batman and Superman. Superman is a out of this world human, containing over powered strength and god like powers... in the trailer he is shown as a threat to Batman and someone who is a threat to this world. Batman is shown as a hero, strong, powerful mastermind and relied on  to save us.

Iconography:
There is plenty of iconography typical of the action / fantasy genres: gunshots, violence, god like humans with super powers, technology, explosions and smashing glass. All of these are typical of the action fantasy genres.

Setting:
Even though its not clear where the setting is. its fair to say its set in America judging by the court scene and the language is spoken. Another place where they could be is in Gotham predicting this by the batman scene.