Joe's post on the Worlds thread got me to look this up.
The spring cheesefest will be on April 11 and televisied April 15. Skaters expected to perform are
Sasha Cohen (USA)
Emily Hughes (USA)
Michelle Kwan (USA)
Kimmie Meissner (USA)
Irina Slutskaya (RUS)
Stephane Lambiel (SUI)
Evan Lysacek (USA)
Evgeny Plushenko (RUS)
Matt Savoie (USA)
Johnny Weir (USA)
Rena Inoue & John Baldwin (USA)
Tatiana Totmianina & Maxim Marinin (RUS)
Tanith Belbin & Ben Agosto (USA)
They are calling this the "Marshalls U.S. Figure Skating Showcase" and say that each participant will skate two "exhibition pieces." It sounds like it will just be a show with no judging.