He's coming back in 2009 because he knows it's an open Olympia. He knows the 2008 Sandow has already been bought by Muscletech has Jay's name on it.
He CAN do it. 2006 he didn't diet down enough, he was the biggest. 2007 i think staying on all year (both diet, training and gear) fucked his dieting down. He can get it right again.