More processing power than PS3/Xbox360 sounds like a given at this point. At the end of 2012 I doubt any of the current gen consoles will sell for more than $250, probably $200. Heck, Microsoft is selling the 4GB Xbox360 at 199 bucks right now. Nintendo will be able to sell a system that is twice as powerful as the current gen consoles for $299 while still making a nice profit.
But why should they abandon the Wii remote? It's like Sony and Microsoft going back to Arcade Sticks. Motion control is standart now. They might include a classic controller in the package but the main controller will be an evolution of the Wii remote. I'm still hoping for a Kinect / Wiimote hybrid with new versions of Wii Sports, Nintendogs, Wario Ware and some Eyetoy-like minigames for launch. Couple that with a price point of $299 and both customers and third parties should be pleased.
If Nintendo plays their cards right they are in a great position for next gen. Sony and Microsoft won't be able to sell their console at huge losses this time. Nintendo's got the business model advantage and a one year headstart. They also built up a library of huge games with the "Wii" line.
