Wii U platforming is headed your way!
Mario Maker and Yoshi's Woolly World have both gotten their release windows.
Mario Maker will release in September, for the 30th anniversary of Super Mario Bros, and will feature online sharing of levels. More information on the 30th anniversary will come soon.
Yoshi's Woolly World will release this fall, and will feature a "Classic Mode" for traditional Yoshi's Island challenges and a "Mellow Mode" with full Winged Yoshi gameplay and an easier experience. The option to switch modes on the fly is available as well.