It seems the cat might have been let partially out of the bag for the Paranormal Activity director's follow-up film. Latino Review has gotten a hold of a recent script draft of Oren Peli's new film Area 51 and have revealed the first plot details of the film.
The "script" for Area 51 reads much like I imagine the "script" for Paranormal Activity did. It's basically a scene-by-scene breakdown with a list of various props, actors, and the general interactions between the actors and their surroundings. There is no written dialogue, but within the action descriptions are general ideas that the actors will be using to improvise their lines with on set. Unlike Paranormal Activity's single location, Area 51 is far more expansive in its setting.
The rest of the site's piece contains a heavy dose of spoilers, so CLICK HERE at your own risk if you want to read more about Oren Peli's new film.