After Miyamoto retires, Nintendo will continue his legacy. Miyamoto didn't only created new standards for gaming, his games have been responsable for what I call the Nintendo philosophy. His way of thinking about video games in general can be found even in Nintendo games that didn't involve Miyamoto. Nintendo has proven they can make good or even great Zelda's, star fox's etc... without the hands of the master himself.
But let's not look ahead too much. Remember Hiroshi Yamauchi former president of Nintendo stepped down as president when he was 74 and was in the board untill he was 77 before he finally retired. Passionate businessmen don't stop untill their health tells them otherwise.
Let's all hope Miyamoto will live a long and healthy life. There is atleast 2 decades of gaming genius left in his head.
