Based on the Bleach anime, Bleach: Versus Crusade is being developed by the team that made the Bleach DS game.
Treasure announced that their first Wii game will be a 3D fighting game based upon the Bleach anime. Subtitled "Versus Crusade", it has a cell-shaded graphical style and features all the main characters from the series.
The same team that made Bleach on the Nintendo DS are developing it, and are planning to include some kind of Nintendo Wi-Fi connection compatibility.
It has not been confirmed whether that means online versus play, but we are expecting more details at the end of September so keep checking the site for future updates.
Bleach: Versus Crusade is scheduled for release sometime this year.