According to articule on comicbookmovie.com, the president of Warner Bros. studios stated that the DC Cinematic Universe depends on the success of the Man of steel. So if flops a Justice League film will not likey happen this decade or any other heroes other than maybe another Batman film. This shows how cautious DC and WB are. They took a risk with Green Lantern and it failed. And they are now cautious with their characters other than Batman.
I disagree with that thinking. If MoS does flop, WB should just try again to launch a DC Cinematic Universe. However use Batman, their tried and true character to launch it.
Any way here is the articule: http://www.comicbookmovie.com/fansites/JoshWildingNewsAndReviews/news/?a=73386
what do you think?