This prediction is more or less a joke but would be interesting if true.

Now, not many types of animals are featured in the books, (mostly just bunnies, birds, and wolves) But what if a "new" species was introduced to the story. This might actually happen, but not the species I'm thinking of: Humans.

This might ruin some of the integrity plot, but I'm not thinking a main character being human. How interesting would it be if Picket was just scared by a human walking past? It would tie together their world and our world.