For years, there’s been a legal battle ongoing between the holders of the series’ copyright and the screenwriter of the first Friday the 13th, Victor Miller.
(And if Victor Miller wants to work on Friday the 13th: Jason Takes the Court with me, he knows where to find me.)
Miller filed suit to make use of an aspect of copyright law that allows authors to reclaim their copyright after a set amount of time.
If you’ve wondered why there hasn’t been a Friday the 13th movie since 2009’s reboot of the franchise, this may explain it.