The Quileute and the Volturi close in on expecting parents Edward and Bella, whose unborn child poses different threats to the wolf pack and vampire coven.

Its rumoured that performance capture will be used for the character renesmee. The director was quoted as saying:

“I keep having visions of ‘[The Curious Case of] Benjamin Button’ in my head,”Godfrey said, adding that Renesmee will almost certainly be an actor blended or affected with CGI. “I wouldn’t be surprised if it ends up being a full CG creation, but it also may be a human shot on a soundstage that then is used to shrink down.” It’s a natural comparison since the characters of Benjamin and Renesmee are in similar fantasy predicaments
2008’s The Curious Case of Benjamin Button won the Oscar for visual effects using a technology called “Contour,” a futuristic camera system created by former Apple engineer Steve Perlman. Contour allowed director David Fincher to capture the detailed facial movements of Brad Pitt, not just plotted points, and transfer the digital, photorealistic images to computers. However, it’s highly unlikely Summit will land Fincher, for various reasons the least of which is his busy schedule.

The visual effects will depend on the director’s take on the Renesmee character and his/her familiarity with the technique