ImageForm announced in an interesting way on their Twitter account about the Wii U release of SteamWorld Dig (you can see it below). The game will be released this fall in North America and Europe.
Aww yeah! We got candy ;D pic.twitter.com/79FfInMEwZ
— SteamWorld Games (previously Image & Form) (@SteamWorldGames) May 27, 2014
https://twitter.com/ImageForm/status/473813365987762176
https://twitter.com/ImageForm/status/474551256426774528