https://www.cnet.com/news/avengers-endgame-trailer-4-things-we-learned-and-4-things-we-didnt/

With Avengers: Infinity War ending on such a massive cliffhanger, Marvel fans have been waiting for months for any clue to how the World's Mightiest Heroes would reverse the vaporizing of half the population of the universe. While the trailer gave us an assortment of key characters, it also did a good job of keeping out any real revelations about Endgame.

Still, there's a lot to unpack in the two-and-a-half-minute clip. Here's what we learned: