Here are the release dates for all upcoming Nintendo published software on GameCube and Game Boy Advance.

GameCube

2004
Jun. 07 - The Legend of Zelda: Four Swords Adventures
Aug. 30 - Pikmin 2
Sep. 27 - Donkey Konga
Oct. 11 - Paper Mario 2
Nov. 15 - Metroid Prime 2: Echoes
Nov. 29 - Star Fox
TBA. Q4 - Geist

2005
Advance Wars: Under Fire
Donkey Kong Jungle Beat
Fire Emblem
Mario Tennis
Odama
The Legend of Zelda

Game Boy Advance

2004
May. 24 - Mario vs. Donkey Kong
Jun. 07 - Classic NES Series
Jun. 21 - Mario Golf: Advance Tour
Jul. 26 - Hamtaro: Ham-Ham Games
Sep. 07 - Pokmon FireRed version and Pokmon LeafGreen
Sep. 14 - F-Zero GP Legend
Oct. 04 - Mario Pinball
Oct. 18 - Kirby & The Amazing Mirror
Nov. 15 - Donkey Kong Country 2
Dec. 06 - Mario Party Advance

2005
DK: King of Swing
The Legend of Zelda: The Minish Cap