I think fd7 should be on a train or fd8 to end fd3. Like in fd3 when the girl had a premonition on the train, she was against the window and saw a guy screaming which was in a whole other cart. Maybe that guy could of had a premonition that would end fd3 like they did with fd5 with fd1 (In other words, combine the two movies ). And, if the coronor is or is not death then in fd7 he could be in one of the death groups but had survived because he had took someone else's life (who actually does live longer). This could be the reason why he knows how all of this happens and how to cheat death. Man I'm good.