Jean Pascal, Andre Dirrell, or Lucian Bute, were he to beat Froch in the rematch. Of those options, Andre Dirrell probably is the best choice. Both were Olympians in the same class. They were scheduled to face each other before Dirrell was injured in the S6. Ward has beat the rest at 168. Jean Pascal isn't a bad option either though because he brings a lot of $ to the table if the fight was held in Canada.