Thats still not enough, Nintendos problem has nothing to do with the amount of games they publish, they probably do more than any plaform holder, they need the top games from multiplatform as well, Nintendo being just for Nintendo published games will never be viable in the long term. 

It really feels like they have to partner up with anybody they can just to get games on there system, no one seems to make Nintendo games just because they want to as its a viable business model. 

Something big has to change, they either need another mass market gimmick, which is much easier to say than to acheive, or they need to become much more attractive to other developers. 

They have smartphone monies now to pay all the bills and then some. That's the "something big has to change" thing.  

The NX just has to be nicely profitable but it doesn't have to carry Nintendo on its own. QoL, amiibo, media licensing (Mario CG movie?) will also spread the burden around. 

That said, more than a few third parties probably would support a Nintendo if they could get the 3DS size userbase without the PS2 level engine making so they could actually bring their more modern titles over. But wouldn't be the sales driver. 

Well heres hoping so, although your making it sound like other divisions will carry a console does not sound good long term, things that dont pull there weight eventually get cut off in business. 

I also feel they need to align there hardware with others, i think your right in saying developers dont want to have a seperate engine archtiecture just for Ninty ports. 

Thats still not enough, Nintendos problem has nothing to do with the amount of games they publish, they probably do more than any plaform holder, they need the top games from multiplatform as well, Nintendo being just for Nintendo published games will never be viable in the long term. 

It really feels like they have to partner up with anybody they can just to get games on there system, no one seems to make Nintendo games just because they want to as its a viable business model. 

Something big has to change, they either need another mass market gimmick, which is much easier to say than to acheive, or they need to become much more attractive to other developers. 

The industry doesn't need 3 consoles that do basically the same thing and it's never supported three successful consoles that do the same thing either. And no, 6 or 7 Nintendo franchises isn't enough of a differniator for most people ... Nintendo tried that with GameCube. 

Nintendo is gonna do their own thing, I don't think there's much choice in the matter anyway. 

And what would the NX solve?

Same Nintendo games. What is the point? What needs to change to gain widespread appeal isnt to drop your fans on the water and change nothing.
That is the worst thing you can do. Thats what SEGA did.

No, Nintendo needs to soldier this one out until the time is right.

Consoles are differntiated by Software and OS features, not the hardware, having custom hardware that makes it harder for people to develop for is just going to fail hard.  Yes they probably have to find there own space in the market, but that cant be at the cost of alienating developers, as you say a console just for Nintendo games is not going to work. 

So, if I go in the ring with Mike Tyson and land the first two punches; I'm set to win the boxing match? This is a shockingly illogical way of thinking. I'm sure I can win a 100 meter race with Usain Bolt as well if I get a 10 meter head start.

The Wii U is not "winning" Japan; it is slowly but certainly being caught and will fall into 2nd place in the home console market sooner or later, to deny that at this stage is beyond ridiculous.
Let's also not forget that the PS4 launched in Japan about four months after NA and EU and outside of the holiday season; making it only about a year old in that region with the numbers we have here, with a fairly poor launch and a fairly slow start, it has sold about 1.16 million as of March 1st, more or less exactly 12 months after release, it has still to receive any of its biggest franchises, the first will be either MGS or FF this year and it has not had a price cut or extensive bundling either.

The Wii U has sold around 2.23 million in its roughly 27 months on the market, including two whole holidays and a december launch and it has received all its biggest games besides Zelda.

Are you sure you want to make this argument that it is winning?

None of those games are their main francises or even particularly big games at that, is what I was refering to. Dragon Quest Heroes is not a proper Dragon Quest game, but a Musou game. Yakuza has never been a system seller, etc. Also, hardly anyone bought FF Type-0 HD in Japan unlike in the west. (Because they've already played it on PSP, unlike us.) And yet we've been seeing impressive signs lately in spite of that. What will be really interesting is when games like Metal Gear Solid V, Final Fantasy XV, a main staple Resident Evil game, Persona 5, Kingdom Hearts 3, and other jrpgs start coming out, etc.
WiiU already released several of their main franchises released, while PS4 has yet to release even one. WiiU also had a price reduction, while PS4 has not.
Looking forward there's not a lot left for Nintendo to throw at Japan, and it will just get worse with time. Meanwhile Sony have pretty much everything left to play.

That's called "being in the lead", not "winning".
The one winning is the one on track to win by the end. And that does not look to be the case for the WiiU at all right now. It's getting outsold by PS3 at times iirc.