I think 2017 will be the peak year. It the first full year of PS4 Pro. Not no mention it had better exclusive than 2018 will have. I don't think Spiderman is going to beat Gran Turismo. Neither will GOW beat Horizon (which is looking to be a 8m seller or something), etc. I feel third party will be slightly weaker next year as well.
Regardless... I think 2018 will come close to 2017 and probably reach 16m or 17m.
Bet with Teeqoz for 2 weeks of avatar and sig control that Super Mario Odyssey would ship more than 7m on its first 2 months. The game shipped 9.07m, so I won








