The concept art posters feature Elizabeth Olsen as Scarlet Witch, Iron Man and the Ultron robots.
The posters are free while supplies last at the Marvel Booth #2329.
Marvel also teased to check back tomorrow for something else they might have.
The cast of The Avengers 2 will also be present for a signing at Comic-Con, and most likely the film will be a part of the Marvel Studios Hall H plans on Saturday night.
Update: New Ant-Man art has been released.
"The Avengers: Age Of Ultron" hits May 1, 2015 directed by Joss Whedon starring Robert Downey Jr., Chris Evans, Chris Hemsworth, Scarlett Johansson, Mark Ruffalo, Jeremy Renner, Samuel L. Jackson, Elizabeth Olsen as Scarlet Witch, Aaron Taylor-Johnson as Quicksilver, Paul Bettany as Vision, with James Spader as Ultron.
Head on over to the Cosmic Book News Avengers movie hub for more.