This thread was fun last year, so it should be this season as well. They are showing a marathon of last season on Food Network all afternoon and evening today.
Food Network: The Next Iron Chef official page
Here are the chefs who are returning for one more chance:
Spike Mendelsohn (I thought he was TERRIBLE last season - why is HE back?)
Thoughts before the premiere tomorrow? I wished Marcus Samuelson from last season was back - his biography was a GREAT read!