Speak for yourself.

Big Red Button
Edge of Reality
Turtle Rock Studios
Slightly Mad Studios
Crytek UK
Retro Studios.

If Nintendo bought all these studios and had them each work freely on a completely new, western style game of their choice, that would give them plenty of games that catered to an audience that they severely need if they want to succeed anymore.

And that's not enough. They need to start way more Wonderful 101-like 2nd party collaborations, but with western studios to create new exclusive western Nintendo IPs on top of their own new western studio IPs and on top of their current onslaught of classic IPs. Nintendo needs to become truly self sustaining. They need to get to a point where they genuinely don't need 3rd parties anymore because they pump out so many games on a regular and consistent basis that cater to absolutely every type of gamer.

For some reason, in my head I was more countering your "Nintendo only needs Retro. Nothing more, nothing less. Nintendos concern should not be in creating Intellectual Properties specifically tailored for Western markets " remark. My bad.

Nintendo's concern absolutely needs to be western markets. When you try to please everyone, you please no one. Nintendo has tons of IP that cater to a broad audience, but a broad audience isn't the entire audience and right now Nintendo's "worldwide appeal" IP's are sorely lacking in the western markets. In the same way Zelda doesn't have "world wide appeal," God of War doesn't. Nintendo needs more God of War to compliment their Zelda.

...Is that a joke?

http://www.vgchartz.com/article/251476/ps4-vs-xbox-one-vs-wii-u-global-launch-sales-comparison/

The same argument could be said between 3DS vs Vita.

Again : Nintendo's concern should not be in creating Intellectual Properties specifically tailored for Western markets; instead, Nintendo should seek new partnerships with already established properties and develop new properties that have worldwide appeal - Mario & Company are great but Nintendo's arsenal, though arguably the largest in gaming, needs to be larger.

Nintendo needs a handful of new evergreen properties that have global appeal like Pokemon, Mario, Zelda, Smash Bros and Animal Crossing.

They should westernize Zelda just slightly, since it sell the most there, they should allow Retro to create a new IP and maybe set up 3 new studios that focus a bit more on the dudebro scene as to build an audience that actually buys 3rd party games.

that's Nintendos biggest flaw/weakness; their customers are too loyal, they only play Nintendo games, but to be a real compatitor you need 3rd party support.

The Vita's failure is an entirely separate issue of trying to cater to a home console audience on a handheld. Those people can already play those Vita games better on the come console they most likely already own. They're catering to an audience that only practically exists in Japan, there come consoles aren't popular, so there isn't competition. (and even there it isn't doing so well because, again, home consoles and subsequently their type of games aren't popular over there)

So again: Their current properties are not enough. Most (console) western gamers want (console) games Nintendo just isn't providing. New people making the same (console) games won't do anything, just like a western studio making Sonic won't suddenly make Sonic Boom sell better in the west. They need new (console) IP that (console) western gamers want and aren't getting from the Wii U (console).

They don't need to westernize Zelda. Zelda does fine here. They don't need to touch what they already have. They just need to add onto it.

And "dudebro" is an immature stereotype. Stop that.

They should buy ubisoft.

Of course when the wii was big was the time to buy new studios. They could have supported the wii properly throughout it's life and made a lot of money in the process due to it's install base. Then they'd have been prepared to supply all the games they needed for the wii u to do well regardless of third parties.

To be far they have expanded a lot. I don't think it's as much of a west vs east issue as some make out. They just need a steady supply of appealing games that sell well to the nintendo audience and attract new people to the system. They can't compete with an xbox when it comes to shoot em ups and shouldn't waste a ton of money trying, but if nintendo gamers have a casual interest in the odd shooter they can still play 2 cod games and a splinter cell on the wii u, along with range of other games... and a lot of platformers.

There's a reason why Grand Theft Auto and Call of Duty sells 10's of millions in America and maybe not even 500,00 in Japan, it's call appeal and it works both ways. In Japan Dragon Quest will sell about 3-5 million but in America maybe a 1/4-1/3 of that. These games appeal to a different audience. It's the same reason why "My Little Pony" vs "Gears of War" are sold to a different audience. Unfortunately the content Nintendo provides is not to the taste or liking of The majority of Americans hence the better sales of Ps4 and Xone.

I've said this many times before; they indeed should buy ubisoft...

here's the pro's-

1.  Have access to western developers and western Intellectual prop (All Exclusive IP to boost sales)

2.  Fill the void Rare left with a company that has done fairly well on Nintendo systems and has a similar philosophy to Nintendo

3.  Gives Nintendo a huge company to be that one-two punch to have a steady flow of games throughout the year.

4.  Have HD ready developers to assist Nintendo with their own franchis games

5.  Has IP that complement Nintendos family friendly image (Watch Dogs, Assasins Creed, Splinter Cell, Tom Clancy, Prince of Persia, Beyond Good and Evil, etc)

6.  This move will show Nintendo is not inclusive (as in Great Wall of China or the Berlin Wall) to only Japan developers and may bring even more western 3rd party support