Just something about Nintendo's "more dense" statement;
Nintendo never said there will be less dungeons, even saying it's shorter is your own interpretation. Not to mention that Nintendo seems to be contradicting themselves lately.
First they said the game will "not be as big as TP, but more in-depth"; this does not necessarily mean it's shorter, and it especially does not mean less dungeons, seeing as Bill Trinen called this the biggest Zelda game to date, and Aonuma and Miyamoto still not having finished the game. It's also supposed to be the most content-filled Zelda game yet.
The thing is, Nintendo has been contradicting themselves lately, so quoting any of their statements about the 'size' of the game is debatable.
On topic, I think it'll be very hard to say how many dungeons this game will have, specifically because of the 'formula-mixup'. I think there'll be many places or instances in the game where it's just not clear if you're in a dungeon. I also think there will be many optional mini-dungeons. To just name a number, I think there'll be 6-7 traditional dungeons, maybe 5.