Next month Nintendo of America president Reggie Fils-Aime will be taking the stage to reveal more details on the upcoming Wii U launch.
On September 13th the world's attention will be focused on New York City, where Fils-Aime will be discussing "how the Wii U will change the future of gaming and entertainment". Presumably a firm launch date, possible retail price and day one titles will be mentioned - though Nintendo haven't yet gone into any specifics.
Similar events were held for the Nintendo 3DS and original Wii in New York, so it's highly likely for a dose of the same.