The impending expiry of the WGA contract at the end of October is threatening production of the Justice League of America movie intended to be directed by George Miller of Happy Feet fame/notoriety. Admittedly he also directed the Mad Max trilogy so he might not have been completely inept, but the last news we heard was that Jessica Biel was in, then out, as Wonder Woman.
I actually think she wouldn’t be such a bad choice for the role, but I still think the movie is just a bad idea in general before Singer’s second Superman film or Nolan’s (hopeful) third if last Batman picture. Even though Superman and Batman would most likely not be played by Brandon Routh and Christian Bale in a Justice League movie — which I think is a good idea whether it were made next year or after the conclusions of the individual franchises — I think it makes most sense not to have the characters appear concurrently in separate continuities.
Let Nolan and Bale finish their trilogy, then reinvent Batman as a character that would be compatible with superpowered partners for a Justice League adventure. Let Singer and Routh have another try at a movie worthy of Action Comics, then recast Superman with an actor that would be more credible as the leader of a team of superheroes.