J.J. Abrams, much like he helped do with Lost, recently talked about that there might come a time in Fringe's run where the team will gather together and put forth an end date.

"Just as with Lost, we didn't get to a place until the third season where we were saying, 'OK, we need to know where halfway is,'" Abrams said. "And I feel like that's something that, ... if we're lucky enough to continue going, I do think that at a certain point it would be a really smart thing to start to say, 'OK, let's figure out ... what the actual date is so we sort of know ... how far we should push things.'"