Five Nights at Freddy's: Security Breach showed it's first trailer on a PS5 Showcase event, which is a huge event that revealed several Triple A titles such as Resident Evil Village, God of War: Ragnarök, Final Fantasy XVI and so on.
When the calendar was leaked, the game was expected to be released before July 15, 2020, as the aforementioned Five Nights at Freddy's calendar would be released on that day. This was later deconfirmed after Scott revealed that it will not be released until the end of the year.
Due to leaks from Funko's list of upcoming merchandise products before the reveal of the game's official title, Five Nights at Freddy's: Pizza Plex was believed to be the game's actual name as evidenced by the "FNAF-PizzaPlex-" text. Scott Cawthon later deconfirmed it on his Freddit post. It was later revealed that "PizzaPlex" was part of the name of the main building in which the game takes place.
This is the biggest game in the franchise, far surpassing Help Wanted which previously held the title as the largest game in the series. The game's file size is almost 80 gigabytes rivaling and nearly surpassing enormous games like Grand Theft Auto V and God of War.
Although it is unknown what year this game takes place in the timeline, the month is shown to be March.