http://mynintendonews.com/2012/06/12/the-big-wii-u-game-wasnt-shown-at-e3/
GameTrailers: The Wii U game that prompted the "pretty damn good" launch lineup was never shown at E3
Gametrailers editor-in-chief Shane Satterfield has revealed that Wii U projects that he knew about prior to E3 2012 remain unannounced.
Just realized that a Wii U game I knew about well before E3 was never announced at the show,” Satterfield explained on social media site Twitter. “I’m guessing there are others to come as well.”
Satterfield previously shared back in April that the Wii U launch line-up was “going to surprise people.”