9. Superman Will Die
This one is a little unlikely with DC only just establishing their cinematic universe, but theres some evidence to back it up. The strongest is the presence of Doomsday, who famously pummelled Superman into a squishy paste in the comics. The movie might go all out to recreate that famous moment for the film, giving it some unexpected emotional resonance. If that does happen obviously the character will be quickly revived for any future Justice League movies, but his shock death would certainly get people talking. Theres also the news that Man Of Steel 2 is on permanent hold at the moment, meaning either DC want to take the time to establish their other characters, or he might not make it past Dawn Of Justice. Again, this probably wont happen but if it did, it would be a ballsy move on their part.