Yoshi's Land has appeared in the Canadian online catalogues for retailers Best Buy and Future Shop, with both sites listing the pre-order price as $59.99 and the estimated release date as Dec. 31, 2013.
The product description from Best Buy reads:
Take Yoshi on an epic adventure to remember in Yoshi Land for Nintendo Wii U. Check out Yoshi as you've never seen him before: in glorious high definition. Enjoy dual-screen control thanks to the Wii U Touchscreen GamePad, while you'll also be able to experience full integration with Nintendo's MiiVerse service.
While Yoshi's Land for Wii U has not been officially announced, this isn't the first time its existence has been hinted. Earlier this month a Wii U user accidentally gained access to what Nintendo later explained to be a "mock-up" of the Wii U debug menu. Within this menu, Yoshi's Land was listed as a game for Nintendo's new console.
Best Buy in Canada was also the first retailer to list the Wii Mini before it was officially announced by Nintendo.
We have contacted Nintendo for comment.