it is coming to the americas both in retail and in eShop within the last quarter of 2015.
http://www.ign.com/articles/2015/07/21/nintendo-will-bring-devils-third-to-wii-u-in-the-americas-before-2015-ends?utm_source=IGN%20hub%20page&utm_medium=IGN%20(front%20page)&utm_content=12&utm_campaign=Blogroll