Well of course..
this movie is about BELLA's life!
This is the short story about the movie
u can see it it wikipedia
Main article: Breaking Dawn
Bella and Edward are married, but their honeymoon is cut short when Bella discovers that she is pregnant. Her pregnancy progresses rapidly, severely weakening her. She nearly dies giving birth to her and Edward's half-vampire-half-human daughter, Renesmee, but Edward injects Bella with his venom to save her life by turning her into a vampire. A vampire from another coven sees Renesmee and mistakes her for an "immortal child". She informs the Volturi, as the existence of such beings violates vampire law. The Cullens gather vampire witnesses who can verify that Renesmee is not an immortal child. After an intense confrontation, the Cullens and their witnesses convince the Volturi that the child poses no danger to vampires or their secret, and they are left in peace by the Volturi.
Yes. I saw an interview with Kristen and she said that it will be a 4th movie and that she will be in it, but she didn't signed the contract yet. She didn't mentioned Robert, but if she is, Rob probably will be too.
Of course they will be.It would not be the same without them.I dont think I would go see it if they werent in it,thank God that wont happen though!!!I love them as Edward and Bella.They are the ONLY Edward and Bella!!!