-Ps4 still didn't do any big price cut
-Cross-gen games affected ps4 and x1
-They didn't release they biggest first party games
So no it's not the peak year
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