So many people have such great ideas about what could happen! I definitely think the Jacob and Edward thing is resolved now, Bella made her choice and in Twilight she even says that making the decision is the hardest part for her, but once its made thats it, she lives with her decision and follows that path. So hopefully we can move on from that.
I think the Volturi will be a source of conflict in this one, possibly forcing Edward's hand to change Bella sooner, but he promised he would when Bella married him, so he'll do it no matter what I think. I know there will be problems with Jacob but I don't think he will die or anything. I think SM likes his character too much, I could see her writing other books from Jacobs POV, which reinforces my belief that Edward and Bella will stay together.
I'm hoping nothing happens to interrupt the wedding, but I could see that being a source of conflict too. I don't think Seth will be the cause of the interruption though, because even if Jacob is in trouble, Seth would have to be in his wolf form to know about it. I'm just hoping that noone jumps up and objects or something like that.
Maybe Bella's vampiric talent will be a source of conlict since the possibilities could be endless. Or maybe it will be Bella herself who causes the problems once she's changed, maybe she'll have a hard time adjusting. Though I'm too sure about that considering she chose to change and I think that will actually make everything much easier for her. Who knows, sorry if any of this doesn't make sense! I just had to get it out, I'm so anxious/excited for Breaking Dawn!
"For this one night, could we try to forget everything besides just you and me?...It seems like I can never get enough time like that. I need to be with you. Just you."
*sigh* Edward in Ch. 20 of EC