I've heard everything from Biffle, to Harvick, to Newman, to Marlin, to Gaughan....you get the idea. But the latest and most likely is Sam Hornish of IRL fame....he drives for Penske there, and has been repeatedly interested in Cup since he was rumored to be in the #1 car that Steve Park landed.
in related news: Rusty reportedly is willing to be bought out by Roger Penske for his interest in Penske South. (condition for getting Newman resigned) Rusty would still stay on to help out with sponsership duties, but nothing more.
