Voice of Mario hints at new game, not Galaxy or NSMB

In what may be of an overzealous voice actor leaking an unannounced video game via Twitter, Charles Martinet, best known for voicing Mario, Luigi, and a cavalcade of other Nintendo characters, seemingly revealed a new, unannounced Mario game earlier today when he sent to his followers:

Awesome new Mario Game! And it's not NSMB Wii, and it's not Galaxy 2, but it's going to be crazy fun!

On October 12, Martinet posted a message that seems to indicate that he's already recorded the dialogue for the new game, when he posted , stating:

Big day tomorrow! Seattle for a new Mario game! Yippee!!! And just as a joke, it's going to rain....in San Francisco tomorrow!

Martinet has voiced Mario in every game in which the character has spoken since Super Mario 64, which means that this game could be anything from a new Mario Party game to another sports spin-off.

UPDATE: Nintendo has replied to the leak with the following comment: