They have Portman locked into the lead of Black Swan, with only a few small budget issues, it looks like Black Swan is next on the directors list and could end up possibly shooting the film later this year, which would put Robocop's reboot up on the back burner and officially into development hell.
MGM is quietly stating that the film could still hit theaters in 2011, they are also looking for another director to fill the void and get Robocop blasting bad guys again.