Even before the Comic-Con trailer landed (where he briefly appears), there was word Batman would be part of David Ayer's Suicide Squad. Given the film features his nemesis The Joker and potentially lots of Arkham stuff, that's maybe not surprising. But what about Superman? Can we expect to see him too? Not according to the Man Of Steel himself. When asked by Metro if he'd be in the film, Cavill gave a declarative "no". However the actor didn't rule out appearing in future Suicide Squad outings, suggesting there "might" be a place for Superman in the sequels. https://www.youtube.com/watch?v=WI3hecGO_04 I didn't expect to see Superman in Suicide Squad, so this comes as no big shock. Having Batman involved makes sense, as he'll likely share history with several of the fiends involved. Batman could be a welcome expository tool or just a cool addition to an action sequence, but adding Superman is probably stretching the movie's fabric too far. We do need to spend sometime with the Suicide Squad themselves after all. Suicide Squad opens 5th August 2016.
