The Nintendo Network is currently undergoing server maintenance, which is scheduled to last until August 31 at 2 a.m. PT. Certain network services are affected on Wii U and Nintendo 3DS, including online play and rankings. Minecraft: Wii U Edition will also be undergoing maintenance within the next couple of hours, during which all network services will be unavailable, but they will go back online at 8:30 p.m. PT.
Nintendo Network Currently Undergoing Server Maintenance On Wii U And 3DS

Just before the Direct… Interesting! :)
as all they reavaled the NX in september we should be good to go if we get more info.
Unreal…
I was able to play Smash U just fine, so wonder what went down
Maybe because there is some hidden code related to the Direct to be put on the eshop….