High-definition is the future and it seems that Nintendo might finally be moving in that direction. Miyamoto, in a recent interview, said this:
…I’m afraid we cannot confirm what we are doing today. But the fact of the matter is that technology is evolving all the time and in Japan, for example…All the analog broadcast will be stopped and shifted into the digital broadcasting. So many things are taking place and we are working in terms of the changes of the technologies all the time
So yeah, kind of a non-statement from Nintendo’s Senior Managing Director but you can read between the lines that once the world is ready, there will be an HD Nintendo gaming system.