[EVERYTHING] Do you think we will see this character again?

Time is running out for the series and this season. Will we see Jaqen H'ghar ever again??? I don't know what role he or any other Faceless Man would have in the rest of the story. Other than Arya, of course. And no, I in no way believe the Waif is wearing her face.

Note: yes, I've already heard the theory that Syrio is Jaqen. So, save my time and yours.