Well, no, but similar to the fake leaked Batman Vs. Superman script, someone went and tried to make others think as much.
We still don't know if Batman Vs. Superman will be at Comic-Con, but it's speculated WB will be bringing something regarding their DC movie universe to the convention.
Check out the fan-made video:
"Batman v Superman: Dawn of Justice" has a newly announced May 6, 2016 release starring Ben Affleck as Batman, Henry Cavill as Superman, Gal Gadot as Wonder Woman, Amy Adams as Lois Lane, Laurence Fishburne as Perry White, Diane Lane as Martha Kent, Jeremy Irons as Alfred, Jesse Eisenberg as Lex Luthor, Ray Fisher as Cyborg with Callan Mulvey, Holly Hunter and Tao Okamoto in new character roles for the film. Justice League is to follow directed by Zack Snyder as well.
For more news on the "Man of Steel" and related movies head on over to the Cosmic Book News Superman movie hub.