to be fair on the plot hopping part, the original series also kinda that with Fnaf 3, 4, and Sister Location.
True, BUT we didn't have as many direct plotlines and the scope was much more small.
Fnaf 3- Springtrap is revealed to be the Purple Guy, he burns in a fire in the end. Left open plotline: Springtrap survived? (Resolved in following games)
Fnaf 4- The Crying Child's story. Left open plotline: Who was the Crying Child? (Not yet resolved)
Sister Location- Michael Afton, backstory on William, and Elizabeth-Circus Baby. Left open plotlines: What happened to Michael? Where did Ennard go? Did Michael find Springtrap? (Resolved in the next game)
Fnaf 4 was the only one that went a little outside of the plotline, as both of the others directly involved William Afton. While Sister Location was the only one with a big cliffhanger attached. Fnaf 3 teased that Springtrap survived, but that's not the same since the main story beats came to a close. And the story itself was much smaller.
And in Sister Location's case, the next game DID directly follow up on the storylines. Even if some of them were resolved offscreen.
But in this case we would be coming off two very heavy story games, with more characters who were directly in the limelight, and then just jumping to a new location.
Ruin's leftover plotlines: - What happened to Cassie? Did she survive? - What happened to Roxy? - What happened to the Mimic? - Was that Gregory/What happened to Gregory?
Secret of the Mimic's leftover plotlines: - What happened to Arnold? - What happened to the Mimic? - Did did/how did Fazbear Entertainment get the Mimic?
And the plot thread between them that has not been solved, how did the Mimic get from MCM to the Pizzaplex, and what's up with this whole Glitchtrap thing?
It could work! But I would fear that it would result in another situation where a lot of plots are either not resolved or are resolved off-screen.