Retail Wii U games not published by Nintendo are rare things nowadays, but this week Nordic Games did bring The Book of Unwritten Tales 2 to the system. It also seems that the publisher, surprisingly, isn't quite finished with Nintendo's home console.
Reinhard Pollice, Business & Product Development Director and Executive Producer at Nordic Games, was asked on Twitter whether the company had any more games coming to the Wii U; the answer was rather positive.
A reference to Action / Adventure could point to a variety of things; a reasonable bet could be the original Darksiders. Nintendo's console has Darksiders II already, but with Nordic pushing that release in promotions since it took over the IP - it even featured in the most recent eShop Humble Bundle - it could be a smart move to let Wii U owners catch up on the first game. A port also seems more feasible than an entirely new game, too.
Ultimately it's all unknown, but it's rather nice to know that the company isn't finished with the Wii U yet.