Just for information: Minecraft for WiiU has had an update (in Europe) since I was playing it over the weekend. Not sure what the update is but just thought I'd share. :
Minecraft Wii U Pops Up on European Ratings Site | WIRED
Wii U Edition – Minecraft Wiki
5 Things You Should Know About 'Minecraft: Wii U Edition' - GeekDad
Minecraft for Wii U | Minecraft
Free update brings Super Mario to Minecraft: Wii U Edition - Polygon
Minecraft Wii-U Update: Nintendo EXCLUSIVE DLC - YouTube
Minecraft Wii U Edition Patch 38 Version History
Minecraft Wii U Edition Update - WHERE IS THE NEXT TITLE UPDATE? (Minecraft TU31/1.8) - YouTube