Rumors are going round very strong. Though couldn’t be confirmed as yet. There is a change in the way climax of the movie. While in the book a lot of hype was created for a potential fight between Volturi and cullens and friends. But nothing as such really happened. Which personally kept me unsatisfied the way the story went to its climax with no real action.
But that is something changed in the movie. If rumors are true than we will see some real action and fight.