Marvel and DC will go head-to-head at Comic-Con 2014, causing some to theorize that DC and Warner Bros. will unveil a possible Justice League cast lineup.

Batman V Superman Footage

DC’s Justice League movie will be their first shared superhero film, coming out of the recent Superman reboot in Zack Snyder’s Man of Steel and the upcoming sequel, Batman V Superman: Dawn of Justice. Last year, Snyder announced the Batman V Superman sequel at the Warner Brothers Comic-Con panel, and fans are anxious to see whether or not Snyder will surprise Comic-Con with another revelation on the Man of Steel sequel.

Rumors, of course, are already running wild about what potential Warner Bros. and DC surprises could be in store for San Diego this week, with many citing footage of Ben Affleck’s Batman, Gal Gadot as Wonder Woman and Jesse Eisenberg as Lex Luthor, at the top of their list. Considering Snyder already gave fans a glimpse at Affleck in full Batman costume, it isn’t so ludicrous to assume that footage of the film will be shown at Comic-Con on Saturday at the Warner Bros. Pictures panel or perhaps at the Legendary Pictures panel.

Furthermore, fans are hoping to see Gal Gadot in full Wonder Woman costume – a very likely event – and, if not, filmmakers will, at the very least, unveil Wonder Woman’s costume design.

In 2010, Marvel grabbed headlines when they invited the entire The Avengers cast to the stage to make their group debut, and some are hoping that DC will stage a similar surprise get together for the cast of the upcoming Justice League film.

The Avengers: Age Of Ultron Cast

Not to be outdone, Marvel will likely storm Comic-Con with more than a few surprises of its own. With shooting of The Avengers: Age of Ultron well under way, fans would be disappointed if The Avengers cast didn’t make an appearance. Mark Ruffalo, who stars as The Hulk in The Avengers, recently revealed that the entire Avengers cast (Chris Evans, Chris Hemsworth, Robert Downey Jr., Samuel L Jackson, Scarlett Johansson, Jeremy Renner) is planning on suspending production in London and jetting out to San Diego for Comic-Con.

“Yeah, we’re gonna go out there. We’re all flying, we’re flying from London…We’re gonna get on a plane and go to Comic-Con together. It’s gonna be amazing,” Ruffalo told Collider.

Expect the line-up to include new Avengers additions Aaron Taylor-Johnson, Elizabeth Olsen, Paul Bettany and James Spader (who will also be in town for The Blacklist panel). Despite the possible excitement the stars will incite in Hall H, bloggers and fans alike would be devastated if The Avengers cast arrives at Comic-Con empty handed. After all, last year’s Marvel panel premiered exclusive Guardians of the Galaxy footage after just one week of production.

New Marvel addition, Michael Douglas, who has been cast in the upcoming Ant-Man film, told reporters that he would be making his first appearance at Comic-Con this summer for the film. During a recent appearance on Late Show with David Letterman, Douglas revealed that he would be taking his son with him to Comic-Con and hinted that perhaps star Paul Rudd would also be in attendance.

Marvel Studios has Hall H booked from 5:30 p.m. – 6:30 p.m., and whatever time not taken up by an Age of Ultron presentation will likely be given to Guardians of the Galaxy, which hits theaters in a matter of weeks. However, fans crossing their fingers for a sneak peek screening of the film will be sorely disappointed, as director James Gunn tweeted that there would not be a full-length screening at Comic-Con.

Fantastic Four Cast

Finally, Twentieth Century Fox is expected to bring out the new Fantastic Four cast – Jamie Bell, Kate Mara, Michael B. Jordan, Miles Teller and Toby Kebbell – as surprise guests at their Friday Hall H presentation. The Fantastic Four reboot from director Josh Trank is currently shooting in Louisiana, so, even if the cast does crash the panel, it’s unclear whether they would bring any footage with them. Of course, as Fantastic Four has not been confirmed as part of the 20th Century Fox panel, they could very well not show up at all. This, however, seems unlikely considering the film is set to be released on June 19, 2015 (notably, before Comic-Con 2015).

Olivia Truffaut-Wong