This is the official EA announcement...seems it will be released for the WII. It's not being done for the WII U, but regular WII games work if you have the WII U.
"FIFA 14, developed at EA Canada, will release worldwide within the next 12 months on Xbox One and the PlayStation 4, and is available for pre-order** now online and other retailers. A version of FIFA 14 will also release on the Xbox 360® games and entertainment system with Kinect™ from Microsoft, PlayStation®3 computer entertainment system with PlayStation Move support, Windows® PC, Nintendo Wii™, Nintendo 3DS™, PlayStation®Vita handheld entertainment system, PlayStation®2 computer entertainment system, and PSP® (PlayStation®Portable) system in North America on September 24 and worldwide on September 27.FIFA 14 on mobile will be available on iPhone®, iPad®, and iPod® touch as well as Android devices this fall. Other mobile platforms will be revealed later.”
I just did a search online and I can only find it available from the nintendo website for the 3DS....strange...