It should be interesting to see how the Avengers: Endgame trailers ultimately relate to the film's final product. The marketing material for the blockbuster has been pretty sparse, as Marvel Studios was focusing on the release of Captain Marvel. The public still doesn't have an inkling regarding what the film's main plot will entail, as things have been kept purposefully vague in the trailers. Instead, the footage sets up the tone of the movie, and just how bleak things are in the wake of Thanos' finger snap of death.