According to Nintendo's event schedule, a title called 'GameBoy Wars Advance 1 + 2' will be released in Japan on November 25, 2004.
The two Advance Wars titles were never released in Japan for unknown reasons, as the first title was cancelled in Japan and the second title never scheduled for release there.
The slightly altered title comes as 'GameBoy Wars' was released in Japan several years ago, but not in the U.S. or elsewhere.
A GameCube Advance Wars, subtitled 'Under Fire' is in development, but does not resemble the gameplay style of the GBA games.
In the tactical RPG genre, Fire Emblem: Souma no Kouseki is due in Japan on October 7