Well it's very similar to the base of Mr Hugs so it's possible that its a earlier model or it's what would eventually become Mr Hugs whether that be because Fazbear loves mascots or because of dumpster diver weekly

Andrew could technically be mentioned in future MegaCat games but unless they do a Stitchwraith game I doubt we'll get far enough for TMIR1280. Though he was already heavily alluded to in ITPG

Here's the billboard

A billboard advertising a vacuum made by Murray Co. was added to Five Laps at Freddy's

I hate that this is the video people go to to learn fnaf lore and people will believe it because matpat is the FNAF guy. Also maybe don't make the last part of your "ultimate timeline" rely solely on one theory with no evidence

Depends on how they go about it. Like I think Afton's and the MCI's story should end with the 3rd movie. But having spin offs or film adaptation of the books separate from the movie trilogy would be great 👍