Well we have to wait for 5 more months *sigh*Nintendo doesn't joke around, they mean business.
Pokemon Fire Red/Leaf Green will be released in September 2004, and the Wireless Adapter for GBA will also be included with the games.
At a New York City analyst briefing on April 1, 2004, one of the announcements included this:
The Game Boy Advance Wireless Adapter, which allows players to compete head-to-head without the use of cords, will be packaged with the September release of Pokémon Fire Red and Pokémon Leaf Green. In Japan, more than 2 million copies of Pokémon Fire Red and Pokémon Leaf Green featuring the Game Boy Advance Wireless Adapter have been sold since their launch at the end of January. The June 28 release of Mario Golf: Advance Tour for Game Boy Advance also will make use of the adapter, which will be sold separately.? (Full Story Here: Nintendo Announces Innovative Updates for 2004)
This release date makes sense because Pokemon Fire Red/Leaf Green will be given out as prizes at the Pokemon TCG World Championships in late August.
Analyst Briefing on April 1
It's probably not the best date for Nintendo to announce things, on April Fools day. But be assured, this is no joke. The last thing Nintendo wants to do is cause mass confusion. (Update on April 2: For the skeptics still out there. As expected, not a joke. Or else, it would have cleared up by now. Pokemon Fire Red/Leaf Green is announced for a September 2004 release.)
September 9,2004 and name change to FireRed LeafGreen, no space in between