ethomaz on 25 July 2013
It is confirmed.
"A Microsoft representative confirmed the delay to Polygon, saying that the game was pushed back so developer Rare had extra time to polish the title and release Kinect Sports Rivals without compromising the game's quality. The Xbox One game will be playable for the first time at PAX Prime and Gamescom in August."
http://www.polygon.com/2013/7/25/4557026/kinect-sports-rivals-for-xbox-one-delayed-to-spring-2014
