If the leaked achievements are any real indication, The Simpsons Arcade game could be made official in the near future with at least an Xbox 360 confirmed so far.
Also teased was the game would include the Japanese version of the game which was a lot easier than the US arcade game since it gave more health items, points, and the ability to jump while holding a weapon.
While the game's development and some details have been leaked before, neither Konami nor Backbone (developers) have made an official announcement of the game as of yet.
Supposed achievement list:
http://www.xbox360achievements.org/g.../achievements/
http://www.joystiq.com/2012/01/13/th...n-of-japanese/