Sakurai's modern design philosophy seems to center around cramming games full of enormous amounts of content and taking advantage of unique or new features made available by the hardware. His games tend to have lengthy production times.

Honestly, this is all somewhat at odds with what PSASBR turned out to be. I think if Sony was interested in spending the money required to make a Smash Bros-caliber game, they would have done so the first time around, regardless of Sakurai's involvement.

He left HAL and founded his own company Sora. That is nothing big - it's basically himself as freelancer to support every team he want:

http://en.wikipedia.org/wiki/Sora_Ltd.

Don't mix it up with Project Sora, that was temporarily founded as developing studio for Kid Icarus: Uprising.

So theoretically he could work for non-Nintendo-platforms. But he still has good contacts with Iwata (from their time at HAL) and Iwata is clever enough to keep Sakurai busy with Nintendo-games and so far it works.

Let's see what he does after Smash Bros. Maybe he wants to make a PS4-game then.

What does Sakurai care about Nintendo policies, he is an indie dev.

Sakurai games quite a bit, and his tastes are pretty varied. I remember an interview where he was saying he doesn't plan to have any DLC for the new Smash Bros. He said that he would rather make sure to release a complete game then have something like day 1 DLC. He then went on to say that he doesn't mind DLC done right, however, and talks about how he is a big fan of Fall Out 3's DLC. Thought that was cool to hear from a guy that's basically a Nintendo dev.

He didn't even mention the Xbox 1 and he looks like a woman.

Dang it, now we'll have to terminate him.

you just mad that he didnt mention xbone

He's just hedging his bets in case the Wii U totally flames out.

That's true :P. 

Mario for PS4. yay !!! :)))