Soundwave on 13 June 2014
June-August '14 - Not much (sadly)
September - Hyrule Warriors
October - Bayonetta 2 + Art Academy U (digital only?)
November - Super Smash U
December - Captain Toad
2015 -
Jan - Nada
Feb - Mario Party 10
Mar - Yoshi's Wooly
April - Mario Maker
May - Xenoblade X + Super NES Remix Vol. 1
June - Splatoon w/Wii U Zapper
July - Mario Kart DLC Expansion
August - Kirby's Rainbow Road
September - Devil's Third
October - Star Fox Universe + Fatal Frame U
November - Pokken Fighters w/Amiibo bundle
December - Legend of Zelda U
Is my guess.
