The skinny is, there is no news. No script, no casting, nothing. Batman 3, or The Dark Knight sequel, however you wish to refer to it, will not be made before 2011. Though he did rule out Johnny Depp.
“There is nobody, there’s no script, there’s nothing. […] It can’t possibly be made before 2011 because ‘Inception’ is such a big picture.”
“Johnny Depp is great in anything, but there is no Johnny Depp in this Batman. They tell me in no uncertain terms.“