The issue is games like Candy Crush, Angry Birds, Flappy Birds, Game of War, Clash of Clans, etc... is that they are outliers most of which are developed by companies explictily designed to home in on this one thing. This  betrays the harsh reality of what the mobile market is. I touched a bit on this on my thread about price competition that nobody wanted to read. You have something like a million games on app store and play store combined give or take the hundreds of thousands of games shared between the two settling to an average price of $1-2.

That's a really terrible market. Typically, this wouldn't be an issue to a seasoned dev like Nintendo, if it wasn't their first real foray into mobile (not handheld) games. With regard to these extenuating factors I would argue that the results are entirely to predictable for mobile to be dependable at least for me anyway. Relying on Nintendo's pedigree is like banking on the success of the PS2 or the 360 in the U.S market.

You know, I've been seeing you placing a lot of faith in Nintendo the past couple months. While I can appreciate the enthusiasm and some logics behind it, and I want Nintendo to succeed greatly as well, don't be too disappointed/shocked if Nintendo screws up royaly. We're still almost left entirely in the dark, and this is still the same Nintendo that made rather arrogant and short-sighted mistakes. Let's hope for the best though.

I doubt he would make such a claim unless he knew about things we didn't

really if they have a successful move into mobile then it's possible. Imagine if they nailed a Pokemon app and a few other popular ones like Animal Crossing. I could see Animal Crossing being giant on mobile, what's more perfect than a little silly app game where you take care of your animal home and visit other animals (mobile humans)

if the NX is a proper integratation of mobile console and home console then I think it will sell great

I'm curious if there are some other things we don't know about yet

to make this sort of claim is pretty serious, I think the Wii/DS era is the most profitable game generation for any company in gaming history. Even Sony in the PS2 era was not profiting (I think they lost money then!). 

will be fascinating to see what happpens

I agree its an insanely agressive prediction but I don't think anyone can deny that mobile could be giant for Nintendo. I could see Pokemon on mobile being like Angry Birds level

Nintendo's Miitomo, first mobile game, was announced and then subsequently delayed. 

As with their foray into HD games, Nintendo tends to overextend on their initial capabilities when entering a new market. The previous statement already suggests that.

I think synergies between development teams - and expansion, as well - should play into their software lineup. They've already announced a new studio partnership in Singapore.

It's been shown that, as is, Nintendo can't support two platforms at once - especially if both are to be more powerful. Software developers like Camelot or Nd Cube can't handle having to release a title every year anymore, now that HD has arrived for Nintendo.

And he - Kimishima - also predicted the Wii U would not be a success.

What he predicted is happening at the moment though

Does that mean they go full casual?

I dont think thats what he meant, he probably meant in 3 year they will have financial years that are more profitable than those in Wii/DS generation.

Definitely possible, but we will see.