Note: It would be best if you read the omegapost.
The Mimic is infected by the Shadow.
Other pieces of evidence:
When Tape Girl mentioned that Jeremy had nightmares, his mentioned looking Like Toby, Nole, and Jessica.
The Character Encyclopedia mentions Shadow Freddy might be more important to the lore in the future.
In Jessica’s dreams, there is a endoskeleton that rips her a part just like the Mimic. She even states that she found it familiar.
RWQFSFASXC‘s move set in FNAF world has Mimic ball.
Something to add in:
Edwin’s the AR protagonist.
