From a magazine called Retro Gamer:
http://www.nintendolife.com/news/2012/10/rumour_gamecube_coming_to_wii_u_virtual_console
Is this for real? Or just speculation?

http://www.nintendolife.com/news/2012/10/rumour_gamecube_coming_to_wii_u_virtual_console
Is this for real? Or just speculation?