Fans cheering for a Dylan-Emma romance are in for a treat. In season four, viewers are guaranteed more romance between the two lovers. In an interview with Zap2It, showrunners Carlton Cuse and Kerry Ehrin made it clear that there was more story between these two lovers that would be explored in season four.
[…] Season four will concentrate on their relationship and the aftermath of the transplant. The pair will be sorely tested in the episodes to come.”