Amazon Germany may have done an oopsie; the retailer has listed (via) the price and launch date for Wii U.
The new Nintendo hardware is priced at €399.99, carrying a release date of December 21.
The price may well be (wildly?) incorrect though, seeing as the site itself notes that it’s speculative.
As for the date, who knows. It may well be a placeholder date. Probably best not to go ruining any calendars just yet; the official word from Nintendo is bound to arrive in the coming months.