Though the Mad Titan has been conspicuously absent in the majority of the trailers and marketing materials for Endgame, he's appeared in plush form via a tie-in from Build-A-Bear, with his own Infinity Gauntlet and sword to keep any opposition at bay. However, most pertinent is his sound chip, which contains five sayings that may, in fact, be direct quotes from the film.
While seemingly innocuous at first, a Reddit user discovered that two sayings may hint towards spoilers from Endgame. The first comes in "I had all the power in my grasp." The use of "had," rather than "have," implies that Thanos will eventually lose the gauntlet that gave him the power to commit genocide with the snap of a finger, as he reflects on his previous dominion.
The second looks to provide the reason why the power is no longer in Thanos' grasp: "How are you doing this? You do not have the will to wield the power of the Infinity Stones!" This suggests he loses the Gauntlet, or at least the Infinity Stones (jury's still out as to whether the Gauntlet is one size fits all), to one of the heroes.
A lead contender to hold the stones is newest Avenger, Captain Marvel, considering the immense cosmic power she showcased during her recently released debut film. However, other candidates may be the God of Thunder, Thor, who has an axe to grind with Thanos after failing to prevent the snap at the end of Infinity War, and Thanos' daughter, Nebula, who actually steals the gauntlet from her father in the original Infinity Gauntlet comic book. Whoever may hold the power, it's clear that Thanos' arc in the Marvel Cinematic Universe is in for anything but a soft landing.
Directed by Anthony and Joe Russo, Avengers: Endgame stars Robert Downey Jr., Chris Evans, Mark Ruffalo, Chris Hemsworth, Scarlett Johansson, Jeremy Renner, Don Cheadle, Paul Rudd, Brie Larson, Karen Gillan, Danai Gurira, Benedict Wong, Jon Favreau and Bradley Cooper, with Gwyneth Paltrow and Josh Brolin. The film arrives April 26.