I think the person who wrote this forgot that there is still the EU fanfest after the JP one. I don't think they would reveal all of this, if you look at how much they revealed in Las Vegas and remember that Yoshi-P said that he couldn't reveal more to have something for the other fanfests too.

Add to that the fact that Yoshi-P wants specifically to stay Director and give up being a Producer in the future when it would make sense. Exactly the opposite from this "leak".