A good fencing game is an option, judging by the promos for Ryse.
For that matter, fantasy rpgs could use gestures and spoken spells.
(Elder Scrolls VI?)
Main thing is a great hardcore game takes a minimum of three years to develop and nobody has had more than two with the Kinect SDKs.
Give it time.
Besides, they still have 5-10 years before the Kinect generation comes of age.
