Digitimes: Nintendo NX will be released in 2016.

[JRPGfan]

Look at how The "PS TV" is compaired to the PS Vita... its basicaly a console version of a handheld.
That is what I think the next nintendo console will be.

The PS TV is sold some places for 39$.

I think Nintendo can do their own version, of a handheld -> home console, thats not 350$+.
And its needs to be able to run the same games as the handheld... the easiest way is to actually allow it to do so.
That means game cartridges are back, imo.