About the situation in Europe: I have had the Wii U for two weeks now (press), and there's no update. Contacted Nintendo and all they say is wait for launch day. So I don't know for sure if there'll be an update or not but my guess is there will be.
Also, yes, in all Media Markts in the netherlands you can get the second game for half price.
Hopefully the update goes live on Thursday. Don't want to leave the midnight launchers without an updated machine