Not a rumor, just the words of Mr Kamiya about the next Star Fox Wii :
http://www.lemagjeuxvideo.com/actualite/le-prochain-star-fox-wii-chez-platinumgames/
This is in french but the good translate could be : "I want what the Nintendo Team come to Platinum with guns to say : Hey, guys, you must make the next starfox on the wii !!!"
Really funny, hope Nintendo will be interested !!!
Love Video Games : http://www.lightningamer.com