The following comments and information come from Nintendo UK’s Head of Communications, Rob Saunders...

When asked if the positive reactions to the 3DS' 3D effect would lead to Nintendo implementing 3D into a console, the response was...

“It’s a good question. The honest answer is that if I told you I’d have to kill you. We’ve had 3D running on past consoles for a number of years and we have had 3D running on the original DS, the Gamecube and the Wii. That’s no secret, we said that at E3 last year, but now it feels like the right time to bring 3D to the market. So “never say never”; we’re always working on new consoles and new applications, things like that.”

On the continuing work on Nintendo's next console...

“We’re always very keen at Nintendo, we always start work on the next home console as soon as the previous one’s released. So we are working on something and we’re always looking at new ideas and new developments, so that work is underway. As to what it pertains to and what it is… Even I don’t know!”

Source http://gonintendo.com/viewstory.php?id=150588

the 3d wii?

Lol he said "if i told you i'd have to kill you" then he said "even i don't know"