It seems we’ve been given a glimpse to what the Nintendo’s dev teams have in mind as the development for the super secret next gen console, project NX, is ongoing. And this is through the legendary game designer himself, Shigeru Miyamoto.
In an interview with Associated Press, Miyamoto was quoted saying (through a translator) that the reason why there is no news yet on the NX is that they are working on an idea. And that if the sole basis of development is through technological advancements, things would come out quicker.
With the announcement date for the NX set to March next year. The Big N has around nine more months or so to prepare for the global release date. So for now, we would just have to wait and see what happens and to watch out on news/updates on this near legendary level of a super secret console project.