While speaking at Nintendo's Media Summit in San Francisco, Cammie Dunaway, executive vice president of sales and marketing for Nintendo of America, said a successor to the Wii will be released "when the time is right." That time doesn't appear to be in the near future; "I don't think it'll be any time soon," Dunaway commented in an interview with Gamespot.
"Even though our installed base is, at this point, 5 million households larger than the PS2 was at the same point in its lifecycle, [Wii] still has a lot of room to grow," said Dunaway. She added, "If you think of [with] PS2, there's been about 50 million sold, Wii [is] close to 28 million sold; that says to me that's there's still a big audience out there that we can access with Wii."
Despite this Nintendo is preparing for the next console cycle, "part of Nintendo's heritage is to always be looking at innovation, and to always start working on the next hardware every time we launch a platform, so we'll have it ready when the time is right," Dunaway concluded.