This is according to a new, interesting job listing.
Ace Combat Assault Horizon to fly over PC skies
Namco Bandai officially announced Ace Combat Assault Horizon: Enhanced Edition for the PC. Arriving in Q1 2013, the PC version will include graphics and controls optimized for the PC. In addition, DLC items, such as several aircraft, aircraft skins, skills, and maps will be included. No price was given for the PC version.
Xbox 360 and PlayStation 3 owners will be left out in the cold for this one, as Ace Combat Assault Horizon: Enhanced Edition will not be released for consoles. On the flipside, Ace Combat Assault Horizon will be available for download for PlayStation Network and Xbox Live Arcade on December 18th.
Source: Game Informer