So Goyer has talked about how the events of Man of Steel could be the sort of catalyst for other films leading up to the Justice League, so what are some ways each character could tie in? I see the Kryptonian invasion as sort of a 9-11-type event in this universe, something that majorly effects the world from here on out, inspiring other super-powered people to become superheroes. It'd be cool to see the invasion in other films as it happens from other characters' perspectives. Some ideas (in a somewhat chronological order of how it could go down)... The Flash - He could have already tapped into the Speed Force and acquired his powers, using them to help people in secret. He isn't inspired to suit up until the appearance of Superman. Green Lantern - Perhaps they send Abin Sur to investigate after the invasion, or maybe Hal Jordan or John Stewart is already the Lantern of this sector, but has mostly been patrolling other planets. Wonder Woman - Maybe the Amazons on Themyscira have kept hidden all this time, but once the invasion starts attracting other alien races and such, they realize it's time to send a warrior of their own to help defend the world from these new threats. Aquaman - Similar to Themyscira, Aquaman could show up to help defend Atlantis from invasion. Martian Manhunter - As in the animated series, he could come to Earth to warn the people about an incoming alien threat attracted by the recent invasion. He could be the one to wrangle the team together, the "Nick Fury" of this series. Batman - Bruce Wayne could have already been operating as Batman in the shadows, maybe reluctant to identify himself as a "superhero" and get involved with the others once they go public. He's probably the last one to join the team. Perhaps Wayne Industries lends a hand to the city of Metropolis after all the destruction (teaming up with LexCorp?). Other ideas?