PS5: 80-90 mil
Xbox Series: 40-50 mil
With the Xbox turnaround I think it will match the Xbox One and will reclaim North America over Sony.
For PS5 they will have less sales in Japan and North America, but Europe will continue to be the biggest continent for Sony.
I think PC gaming has grown so much that it will hurt console sales this generation, and game streaming will impact it in a few years.