It would be fun if they have Arwen (Liv who?) swanning around in the background of the scene...no speaking parts, just looking beautiful and moody, pining for Aragorn. It's been almost ten years, and they better stretch some pantyhose over the camera lens.
If I were doing Hobbit, I'd take a completely different tack. Maybe make it all CGI, all new art direction. It is a completely different kind of story than LOTR. We're going to end up feeling disappointed with recycled artwork.