The ending actually satisfied me (+ spoilers)
I'm certainly going to miss this show, it was wonderful: the characters (especially the Doran's), the mysteries, the storylines, the drama, the supernatural, the Drake building itself... when I watched the finale yesterday, I was kind of afraid it would all be very rushed. Fortunately, it wasn't that bad in my opinion. I could never have guessed that Gavin was Jane's father, but it did make sense. They seemed to have this special connection... I never shipped them, but there always was something more than just friendship. Jane sacrificing her soul to save Henry's life was something I did see coming, and it felt right, in some kind of weird way. They said from the beginning that Jane and Henry were special, and I think in the end, Jane really did find her destiny. It might not have been a real happy ending, but that's kind of refreshing, actually.
It would have been so interesting to see how things turned out with her on the dark side, collecting souls by giving people exactly what they desired and waiting for them to pay the price. It kind of did make sense that she was pregnant... and she didn't seem all that different to me. Her look, yes, and her eyes... colder. But I think that Henry would have left her if she changed too much, so she couldn't. All in all, I think she found her place. The Drake always attracted her and we - and she - knew there was a reason it did... and in the end, she found it. She ended up where she belonged. Ironically, that was a place she wanted to flee from at first, but I do think it is her home. She will be the mother of the next great leader, the next Gavin Doran... and well, that might not be a good thing, but in some weird way I feel that is her calling.