To people that keep pointing towards the Wii and DS' successes as a portent of Nintendo turning it around again, please understand the global technology environment of 2017 is so different to 2006 that comparisons are almost completely irrelevant:
The DS and Wii sold their excess of a usual console generation to the 'blue ocean' of people that didn't consume entertainment on PC's or traditional videogame consoles. A DS and Brain Training was the perfect mom/dad/grandparent gift and so too was the novelty of Wii Sports. It was old underutilised tech that other companies hadn't used or focussed on before. Cheap tech to people that didn't own tech. Fast forward to now, and everyone has tech spilling out of their pockets: smartphones, e-readers, tablets, fitbands. There is no 'unused tech', its ALL being used. There's no special underground and overlooked spin on screen into eyes entertainment. The blue ocean of "people that don't consume entertainment on tech" has ceased to exist. It is no longer there. To impress them, you have to bring cutting edge technology and swallow costs to build platforms.
There quite simply isn't some mythical consumer set waiting in the wings to dive into videogames through their first use of tech; that person plays mobile games.
At most, Nintendo can shore up their faithful consumers and prime them to purchase more first party software than ever before and have them consume media at a higher rate. The way to do this is to make sure both the handheld and home unit play the exact same games and interact with each other seamlessly; aka The Hybrid. There can't be home console exclusive games because then you're already competing with yourself in the already dwindling base you've got. Everything has to be playable on that handheld because thats where your money is.
For this to be true, Zelda: Breath Of The Wild will have to be released on NX Home and NX Handheld. At this point then, the hybrid has become reality. If there are games that do not come to the handheld but instead come to the home console exclusively, you cannot lump them all together as an install base as then the handhelds install base becomes the 'opportunity cost' on each and every exclusive game.