Just a question...
How are all of these things "rumors" when they are confirmed by the developers and public relation people of the game?
Why are these guys in Zelda Wii U Rumors?
Because you have not created a Zelda: BotW facts topic. Once such a topic is created, all these little factoids can be placed there.
/end sarcasm
Seriously though, the only difference between a rumour and a fact is one is suspected to be true and the other is proven to be true. You are basically saying, as soon as a rumour is officially confirmed as correct, it can no longer be talked about here. Honestly I don't see the issue. They are just little factoids about the game, too small to warrant their own topics and this one is the best palce we currently have to put them here.
I'm not having a go at you, I appreciate the question and I'm just answering it.
Dungeons will be completely different to shrines according to Miyamoto. They will be vast and have a labyrinth like quality to them.
That is also a little factoid but you didn't quote him in your post, and he said it very recently . . . just pointing this out.