Not only were there a preview and a new trailer, but a Robb Stark profile video started airing on HBO as well. Here we have it embedded for you, courtesy of darquemode, who once again stepped up to the challege.
UPDATE: The Stannis profile is now available as well, watch it below:
Hear Me Roar: That was a good one! It also includes the clearest look at Oona Chaplin’s Jeyne so far, and a scene that includes the character of Alton Lannister, constructed for the show, apparently in much the same role as we surmised.