Square Enix is doing a 3D remake of Final Fantasy IV: The Years After. It will be released on iOS and Android sometime this winter. The game, a sequel to Final Fantasy IV, originally came out in 2008 for mobile devices in Japan, and was ported to WiiWare in the West the following year.
The game takes place 17 years after the events of Final Fantasy IV, and stars many of the same characters and their children. The upcoming mobile versions will use the same 3D art style found in the iOS version of Final Fantasy IV.