Given USA isn't even a lock for Xb one at this point I can't see any rationality behind a prediction of Europe dominance. Unless there is a killer app for Kinect that appeals broadly in Europe then Kinect is actually dead weight for Xb one there, it's in no way an advantage now or in the forseeable future. Just look at how Europe avoided Kinect on 360 compared to USA http://www.vgchartz.com/gamedb/?name=Kinect+Adventures&publisher=&platform=&genre=&minSales=0&results=200. 14 million in USA, 4 million in Europe. That's over a 3:1 ratio, whereas the ratio for Xbox360 itself is only 1.8:1. The appeal isn't there.
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.” - Bertrand Russell
"When the power of love overcomes the love of power, the world will know peace."
Jimi Hendrix