I've just seen the movie.
Spoiler:
I think everyone will love Jacob.
He's obviously the funny one and we're seeing this magic world through his eyes too. I love that scene inside the suitcase with Newt and mostly all his scenes with him. The end part killed me though. But I think he probably remembers (unconsciously) some stuff. I think Queenie probably did something which we'll find out in the next movie.