superchunk on 09 June 2011
False.
A quick view of Nintendo's site on WiiU shows that it will use ALL Wii accessories.
http://e3.nintendo.com/hw/#/about
Other Controls:
Up to four Wii Remote™ (or Wii Remote Plus) controllers can be connected at once. The new console supports all Wii™ controllers and input devices, including the Nunchuk™ controller, Classic Controller™, Classic Controller Pro™ and Wii Balance Board™.
As you can see it specifically lists every accessory.
