Kevin Smith teased that art for Batman Vs. Superman would be revealed at the recent QnA, and while it wasn't specifically for the movie, it was still created for a good cause.
The Batman Vs. Superman art is for the We Can Be Heroes charity campaign and is currently being auctioned off on eBay.
The art is titled:
Jonathan Wayshak "We Could Have Changed the World" Acrylic & Ink
David Correia "Face Off" Oil Painting
Alex Pardee "Vengeance/Hope" Acrylic & Watercolor
It's also possible the art could give us a clue as to the look to Batman in the movie with the blue and grey colors and large cowl.
There's been some fan contention online - namely with the Superman fans - why Superman would be fighting Batman. Zack Snyder may have given a glue in the QnA in that Lex Luthor views Superman as an alien, which looks to play into the movie with Superman looking like a bad guy. We are guessing "at first."
The latest rumors surrounding Batman Vs. Superman have Nightwing, Wonder Woman and The Flash appearing in some form.
"Batman Vs. Superman" has a July 17, 2015 release starring Ben Affleck, Henry Cavill, Amy Adams, Laurence Fishburne and Diane Lane.
For more news on the "Man of Steel" and related movies head on over to the Cosmic Book News Superman movie hub.