According to an article over at Polygon, the two horror games seem to be getting yet another sequel. Five Night's at Freddy's 3 has apparently been confirmed by developer Cawthon.
Although there isn't much information on the title, emailing Cawthon sends an auto-reply message stating, "Please do not email me asking any questions about it. NO questions about FNaF3 will be read or answered!". Though there's little-to-none information on the third iteration in the series, visiting Cawthon's site, users will be greeted by the above image.