If the PS4 continues at the same pace it is going now the PS4 should reach 100M a couple months before the PS2 did. I think, however, PS4 will sell even better in 2018 than it did in 2017 if it gets that $199 price point under it's belt. I predict the PS4 will drop to $199 in either March or September coupled with the bundles throughout the year will maybe allow PS4 to not only remain flat YOY but offer growth by 1-3 million units in 2018. Let's be honest, the bundles this year weren't impressive on the PS4 front so Sony could see some growth in that department.
If all this happens, I see Sony hitting 100M by Dec. 2018 - March 2019. Of course this depends on whether or not they are able to meet capacity on their production lines of course, considering this would require Sony to make 34 million consoles in a span of 13-16 months.
And yes, I realize this prediction is unlikely to happen but it is my prediction.







