As it turns out, Yoshi's Land for Wii U may actually be a real thing. The title popped up mere hours after the Wii U's November 18, 2012 launch after a new console owner accidentally stumbled into a debug mode containing a testing version of Miiverse that featured a Community listing for a game called Yoshi's Land Wii U.
Nintendo promptly plugged up the exploit and issued a statement that basically framed anything appearing in the backend Miiverse as unconfirmed and purely for testing/mock-up purposes. Only now the Canadian portals for Best Buy and Future Shop offer up product listings -- complete with a synopsis -- for Yoshi's Land Wii U (via Polygon).
Here's what the product listing from Best Buy has to say about the game:
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.
Both listings carry a $59.99 price tag and show an expected release date of December 31, 2012, though it's worth noting that you'll commonly to see retailers use New Year's Eve release dates for games that don't have a confirmed launch.