According to the Official Twilight Facebook it is official that Mackenzie Foy will be playing as Renesmee in the movie..
Hi Everyone!
Congratulations to the Twilight Facebook Fan Page! 15 million fans! You guys never cease to amaze me. In other news…
Very excited about our new Renesmee, Mackenzie Foy. She’s an amazing young actress and I’m excited to work with her. I hope everyone had an enjoyable summer!
- Steph