I wish they hadn't put that scene with Bedelia in at the end. It just confuses the issue. Apparently the director thinks it implies that at least Hannibal survived (how?), and it was to set them up for a fourth series (they made the last episode before they knew they'd been cancelled).
Which is a shame, as the pre-credits final scene of Will throwing himself and Hannibal off the cliff, after showing his feelings for him, was very dramatic and just about perfect, IMO.
I'm not sure how I feel about Will now, though, all the way through you kind of identified with him, and I thought he was basically a good guy. I can see that Hannibal was fixated on him, but the other way round, really??
It's a bit disturbing, as Hannibal, no matter how intelligent and cultured he appeared, etc, was basically a fairly disgusting monster, and I think now that the whole series was glamourising him. I feel a bit unclean for watching now!