Wii Getting Another Final Fantasy Title
Square Enix has announced that they will release the latest Final Fantasy game, Final Fantasy IV: The After Years, a direct sequel to Final Fantasy IV, in North America. The ESRB revealed this, as well as a rating for the upcoming Wii title with an E rating, and also gave this description:
"This is a 2D role-playing game in which players embark on an adventure involving magical crystals and a mysterious kingdom. Players traverse across a field map or through dungeons and can enter into turn-based battles along the way. Players use a menu screen to select attacks or magic spells against tiny enemies (e.g., leopards, birds, knights, fish monsters, etc.) that blink and disappear when defeated. An item called “Bacchus Wine” is occasionally used to defeat enemies in battle."
Since all we have been given is a rating and description, it is uncertain whether or not Final Fantasy IV: The After Years will be a retail release or whether Square Enix will release the game in downloadable parts via WiiWare, which is how the original mobile phone version was distributed in Japan.
Final Fantasy IV: The After Years features Cecil, Rosa, and the entire cast of Final Fantasy IV years in the future. The story begins with their son Ceodore and introduces new characters like a brigade of ninjas under the command of Edge who is now the King of Eblan.

Source: http://www.siliconera.com/2009/02/27/final-fantasy-iv-the-after-years-coming-to-wii/