Jeez, it's like they're announcing a new movie every month! Other studios don't even come close to amount of feature films in their pipeline.
Except maybe Pixar. I met a guy who worked there, and he told me they're usually working on around 10 movies at any given time, they just don't release info publicly.
Of course, like in all cases, just because a film's announced in the works doesn't mean it'll actually end up getting made.