There's a F13 origin film in the works, due out in October. Deals with young Jason, Pamela Voorhees and Elias Voorhees.
I like the franchise, but they're all such weak movies that I have no real interest in a full viewing of any of them again. I check in for the kill scenes, but that's about it. At some point, the filmmakers realized that they had to start playing it for gallows humor, but then there are really no stakes to any of it.
When they remade Nightmare on Elm Street a few years ago, I thought they had a real chance to jump-start that franchise, but they blew it.