The first minute or so of the two minute trailer recaps the storylines of some of our favorite Avengers like Iron Man, Captain America and Thor (all of whom have had at least three solo movies). We also see the return of Hawkeye and Ant-Man who were not seen in the last movie.
It's key to note the color red, which represents the Reality Stone as we are given the flashback to our heroes vanishing from the previous film. Could this be alluding to an alternate reality where time travel has occurred? Lastly, all the remaining Avengers repeat the phrase "whatever it takes" as they walk through an Avengers hangar in white quantum realm-ready suits.
Closing out the trailer, we get a glimpse of Captain Marvel inside a lab staring down Thor. This is a post-credit scene at the end of Captain Marvel as well but potentially in a different timeline. Only time will answer our questions.
Check out the full trailer below and watch Avengers: Endgame on April 26.