In a recent spoiler round-up from TVLine, Pretty Little Liars executive producer, Oliver Goldstick spoils that we will see a connection between Ezra and Mona in the second half of season 4 in January.
...I can, however, tell you that the Season 4b opener will answer this burning question: Why are Mona and Ezra seen talking in the new promo? “It looks like Mona may have had an interesting relationship with Ezra, and we’ll explore that,” teases EP Oliver Goldstick, adding that the pair “reach a sort of agreement, [but] we don’t know what it is. Is he onto her behavior? Or is she onto his? Something is going on between the two of them. They become strange bedfellows for whatever reason.”
Think they would go so far as to make the two literal bedfellows, or are Ezra and Mona just conspiring together?