foreshadowing in movie PoA?

[Jellocat]

I'm new to this list so I do apologize if this has been addressed before
because I know it's an old question. But I read about how Jo has made
mention that there are elements in PoA that foreshadow events that take
place in upcoming books that the director had no idea about. I was wondering
if there's been any discussion about that. One thing I noticed in the movie
is when the cleaning lady knocks on the door, the door opens, and there's a
growl (like a lion) at her. Could that be the new DADA instructor we'll meet
in Book 6??

Jellocat