Xbox One Shipments are around 5.5 million so I expect shipments to go something like this:
Q3 - 4 millon
-Minecraft
-Madden 2015
-Forza Horizon 2
-Sunset Overdrive
-Dance Central
-Releases in around 39 countries
-Evolve
Q4 - 4 million
-Black Friday deals
-Fifa
-Destiny
-Advanced Warfare
-GTA5
-Assasins Creed Unity
-Halo: The Mastercheif Collection
-Typical Holiday Advertising and bundle
I expect Xbox One to ship 13.5 million units this year having sold around 13 million units!