The older Renesmee?

This is a big question for many. Summit though gave out a hint that they are going to make a part with old Nessie and Jake together in BD p.t 2. Though the question is who will play the older Renesmee. Many people put up their pictures and say they are perfect for the role, though I think they are all too young. I think it's too late to send resumés. I will though later update with a pic of me and some info so you can say what you think about it.