In a twist, Captain America is the father to a newborn child. Marvel is slowly building up to “Doomsday,” which hits theaters in a little less than a year. There will reportedly be more teasers that focus on other characters in the coming weeks.

The cat is out of the bag yet again.

Helmed by returning directors Joe and Anthony Russo, the fourth Avengers film sees two different Avengers teams —one with the recently christened New Avengers, the other brought together by Anthony Ma...