Pretty Little Liars: 6 Juicy Hints About the Finale, Straight From Huw Collins

"What I would say is, you know, there have been kind of repeated associations with England and London. Pretty Little Liars is not a show that does things without some sort of significance, whether it's in the short term or whether it's in the long term. And so, I think it would be one way of looking at it, that there's some sort of relevance to that. That he's from London, and potentially that might mean there is relevance with other characters from London, or whether there's relevance to being in London."