This is no surprise considering this entire series was a huge cash cow!! I personally loved the first one, second was good, last one left me high and dry….
Paramount said today that the next installment in its money-making horror franchise Paranormal Activity will be released wide on October 19, 2012. The previous two films in the series also were released around Halloween, with the latest, made for $5 million, opening October 21, 2011 with $52.6 million
https://www.deadline.com/2012/01/paranormal-activity-4-release-date-set/