Coming from Emily Rogers...
YouTube still launching for Wii tomorrow, coming to 3DS next year. Uncertainty over an ND happening this week. Can't confirm or deny. I've been close to an indie developer currently in process of becoming a Wii U eShop developer. Hope to report info on it soon. Whether this indie dev gets accepted or rejected as a Wii U developer, ill be the first one to report it.
I think it's a given that a Nintendo Direct is going to hit us anytime now. I've heard the same from a couple inside sources. Whether it pans out this week or next remains to be seen. We'll find out soon enough about the YouTube situation!