Nintendo working on a new Mario game?

That's what it seems like after an interview with the telegraph:

"Making these 'traditional' games is what I am best at. Because games of that nature take upwards of two or three years to make, we always have to keep the teams working on those projects going.

"At any given time, the team could be five to ten people, or it could be 50-plus. People are always switching in and out of those teams.

"They are all working on more Mario, Zelda and Pikmin projects. And they all work in close proximity to me, so I can keep a good eye on them."

It had already been established that Nintendo were working on a new Zelda and Pikmin (see E3 coverage), but he mention Mario projects. 'Projects' are obviously new games, but what type of game?

SUPER HAPPY FUN SPECULATION TIME!

Well a Mario adventure game has already been released on the Wii; And so has a Paper Mario game. Don't forget Mario party 8. But their haven't been any Mario Sports titles on Wii (Mario and sonic doesn't count). Maybe Nintendo are planning Mario tennis, or Mario golf. It would be too soon for a new adventure game in my opinion. Unless they're planning on unleashing a new Mario genre! I hope they don't release another Mario party for Wii (Stop partying for crying out loud!).
BUT! Maybe it's not on Wii. We haven't taken DS into account. It doesn't seem very likely, but their could be a new Mario adventure coming to DS. I personally think New Super Mario Bros wasn't enough. But the way he mention Mario Zelda and Pikmin makes you think he's talking about Wii.

Wow, so much speculation. Well that's 'cause Mario's awesome, OK!