As of yet there is still no confirmation from Summit or GossipCop that the part of Renesemee will go to Mackenzie Foy. Many people are complaining over the fact that she is too old, but we all have to remember that with makeup and CGI she can be made to look younger. Also, Renesemee is mature way beyond her actual age and a toddler actress could not pull that off on screen. Hence, you bring in a older child that can act with range but still be made to look young. Just my thoughts.