Let me refer to my own post, lol
http://www.vgchartz.com/forum/thread.php?id=54617&page=1
The market share of PS3 worldwide this year has been 22.1%, and way below that in the US, so a 15% of market share in the Americas is possible but imo, due to upcoming releases and possible price drops in the future it's unlikely.
Playstation 5 vs XBox Series Market Share Estimates
Regional Analysis (only MS and Sony Consoles)
Europe => XB1 : 23-24 % vs PS4 : 76-77%
N. America => XB1 : 49-52% vs PS4 : 48-51%
Global => XB1 : 32-34% vs PS4 : 66-68%







