Halo was big since XB and it didn't help XB to outsell PS2 so i don't see why this time Halo will make XB ONE outselling PS4
PS4 - over 100 millions let's say 120m
Xbox One - 70m
Wii U - 25m
Vita - 15m if it will not get Final Fantasy Kingdoms Heart and Monster Hunter 20m otherwise
3DS - 80m