The WiiWare title releases in Japan in September.
It came as a surprise to many when Capcom announced Mega Man 9 as a retro NES-style game for WiiWare.
More surprising news was revealed today through a recent Famitsu article in that the game will have downloadable content. This opens up the possibilities of additional levels and bosses to be added at a later date.
The initial download will cost 1000 Wii points, no details have been announced on pricing of the DLC however.
The game is set to be released in Japan in September this year, there is no date for the US and Europe as yet. Mega Man 9 is expected to be shown at E3 where we should learn more details about the game.