I think both the Denali clan and the Volturri will have parts in Breaking Dawn. There are loose ends to be tied up, and I think the Tanya/Edward/Bella thing will just be too fantastic! I don't really see a reason for any of the vampires from Jasper's past to make an entrance, but who knows.
This Q & A occurred after New Moon and before Eclipse.
“How the Cullen got to know the Denali family, and when? Have they
some other friends, or other families they are in touch with?
Stephenie: Carlisle ran into the three main sisters earlier on, but they were just sort of looking into the vegetarian thing. They didn’t start out that way, for years and years they were the reason behind the myths about the succubus (In Western medieval legend, a succubus (plural succubi) is a demon who takes the form of a beautiful human female to seduce men (especially monks) in dreams to have sexual intercourse-
wikipedia.), they really like human men, but those humans were meal after all. After a while they started to develop a conscience, it didn’t seem right to have them as food, so they sort of evolved into vegetarian, whereas Carlisle was always that way. But they crossed paths and have a lot in common they’re both very civilized they’re able to get along.
The other vampire families would be in book four ,so really far away, but there are quite a few established covens whom Carlisle is friend with. Carlisle is a very friendly guy, people are fascinated with him, because is so kind and good and still a vampire.” (
http://www.twilighters.it/interview.pdf)
I bolded the portion that really interested me. It never occurred to me that a new coven of vampires might be introduced in Breaking Dawn, but how cool would that be?! Will we meet a new family of vampires? If so, how will they be introduced?