So, I was checking out IMDBpro earlier for new episodes.

Looks like Marshall and Chase are getting new voices; Marshall's new VA being Drew Davis, and Chase's new VA being Max Calinescu. This makes sense because Gage Munroe will be 15 in November, and teens can't do high voices forever. 

Anyways, the main reason i'm writing this blog post is because there seems to be a new character named Everest in the Cast and Characters section, played by Berkley Silverman. Here's this link for proof. Could this be a human or a new puppy? Could this be Precious' Owner's actual name?