User blog comment:GabriellaCullen/My Prediction On This 'Alternate Ending'/@comment-79.155.234.76-20120907075923/@comment-89.242.47.173-20120907173013

Actually I'm not sure. After watching the trailer again, Emmett and Rosalie are to the right of Bella and Edward (our left) and should be clearly visible. I reckon Emmett and Rosalie will be running alongside Jacob and Renesmee, since Rosalie is extremely protective of Renesmee and Emmett wouldn't leave Rose's side. I reckon it will be Rosalie and Emmett who kill that dark-coloured vampire we see in the trailer who's chasing Jacob and Renesmee.