There's even an IMDb page for fnaf 3 -
https://www.imdb.com/title/tt37063243/
This is also from Google AI (I don't know how believable the google ai feature is but...)
A Five Nights at Freddy's 3 movie is highly likely and in early development, following the success of the first two films, with production rumored to start in late 2025 or early 2026, potentially releasing in 2027, as studios, producers (like Jason Blum), and star Matthew Lillard (teasing Springtrap's debut) all point towards a trilogy.
Key Details:
Official Status: While not officially announced by Universal/Blumhouse yet, industry insiders and comments from cast/producers strongly suggest it's happening.
Production Timeline: Rumors point to filming starting in late 2025 or early 2026, indicating a quick turnaround after FNaF 2.
Confirmed by Cast: Matthew Lillard has stated that a third film is almost guaranteed if the second is a hit and teased his character Springtrap's appearance, as noted by CoveredGeeklyOfficial and Forbes.
Franchise Plans: A trilogy was initially planned, and the FNaF 2 movie's ending leaves room for the sequel, with discussions even hinting at a fourth movie.
Content: The film will adapt the third game in the series, bringing in elements like Springtrap, reports from kinocheck.com and IMDb suggest.