Looks like they patented the Punch Out name title for 2007. Might be in the works soon. The wii sports boxing is okay, but I wish the controls were better and responsive. This might be the ticket to a great boxing game for the Wii. Man, I can't wait for this come out! I just hope this isn't for the VC, but I wouldn't mind that either.
more here - http://gonintendo.com/?p=12437