There was an interview with Reggi, and Miyamoto for a Latin American magazine. It was translated, and had a few interesting tidbits.
Miyamoto was asked about Wii Motion Plus, and if it was going to be used in upcoming Zelda and Pikmin games. In traditional Nintendo style, it was not confirmed. He did go on to say that there are too many peripherals, and that Nintendo would be cutting back.
Reggie said that the Wii would not have a hard drive, and that they can do better…
The Zelda game in development is unique because work on it began for the Wii, unlike TP which started out as a Gamecube game.
Here are the links to the two articles, one goes on about a possible retro Metroid title.