Today we learned some pretty stellar news which involves the 4th installment of the billion dollar cash cow, Paranormal Activity.
According to Bloody-Disgusting who broke the news, the successful tandem who brought us PA 3 will again be returning to helm the 4th installment.

Originally the early word was that the "ink hadn't dried yet" on the deal, but Bloody is now confirming that Henry Joost and Ariel Schulman (pictured above) will indeed be directing the film which is scheduled to hit theaters on October, 19 2011.
Stay tuned for more news involving PA 4.
Source:
B-D