It has a few things going against it in that region.
-Last to market
-No huge exclusive IP that has massive appeal to Europe
-PS already has advertising in place on key software like FIFA.
Bear in mind that the Xbox 360 managed to sell an incredible 26 million units in Europe. Ms has plenty of potential there. Xbox One being bundled with Kinect, more expensive than PS, technically weaker, and pushing TV (zero appeal in the EU) are all issues that massively hindered sales in the region and worldwide. I expect we will see a much more competitive Xbox in the region this generation.