Will there be 2 boss zombies in "Transit"?

I Don’t Think They Exist - In Transit, kill a screecher

You Have No Power Over Me - In Transit, defeat the Avogadro without being attacked by it

These are you 2 Leaked achievements for the supposedly map called Transit.

The first one is "I Don’t Think They Exist" to earn this first achievement is you have to kill a screecher, we know the screecher from it's appearance in Shangri-La.

The other achievement is "You Have No Power Over Me" you earn this achievement by defeating the Avogadro without being attacked by it. Till now the Avogadro didn't make any appearance.

So what do you think this mysterious "Avogadro" will be? And do you think he will be a boss?