The Avengers' concept art shows off something we had expected to show up eventually: Iron Man's Hulkbuster suit. A suit of armor specifically designed to take on the Hulk, it appears similar to the Mark XXXVIII armor showed off in "Iron Man 3."
It also shows The Scarlet Witch, who in the comics is Magneto's daughter with the power to cast reality-dispelling hexes. She is slated to be played by Elizabeth Olsen, sister to Mary Kate and Ashley.
Also shown was concept art of Quicksilver, her brother. We expect the look of Quicksilver in "Avengers" to be more welcome than the much-ridiculed look of Quicksilver in the upcoming "X-Men: Days of Future Past" film.
The Scarlet Witch and Quicksilver are among those that straddle the rights of both Marvel Studios and Fox, which is how we will see Quicksilver turn up in "X-Men: Days of Future Past" on May 23, 2014, with Evan Peters in the role. Director Bryan Singer has said that there won’t be a Scarlet Witch in the X-Men film, except for perhaps “a reference.”
Also shown was an image of the Hulk and Black Widow back to back.
Other images shared were one of Rocket Raccoon and Groot from "Guardians of the Galaxy" and some concept art of "Ant-Man," showing the Henry Pym version (not the Scott Lang headliner played by Paul Rudd). Pym was a S.H.I.E.L.D. operative at the time of his Ant-Man turn.
“Ant-Man” hits theaters on July 17, 2015 and “The Avengers: Age of Ultron” premieres on May 1, 2015. "Guardians of the Galaxy" will premiere on Aug. 1, 2014.
A slideshow of images can be seen here.