T3 believes that in a future iteration there will be a Wii headset which will use our brainwaves to control our onscreen characters. It would also feature an immersive in-ear headphone for the sound effects, and the Wiimote would be updated to having only one button to point and press.
Gaming via brainwave activity isn't a new or novel idea; Singapore Science Center organized a Mindball game demo a few years back, as have others. So the idea of a Wii headset that uses brainwaves isn't as farfetched as it might sound.
Of course, if this follows through, then the whole point of exercising and working the accelerometer would come to naught in the near future.
(Source: Crave Asia)