No.
Simply put, Xbox is going the third party/multiplatform route with it's Gamepass and ''release everything on PC'' strategy, while Sony is going knee deep on the ''mature'' segment of the industry, focusing more and more on power and cutting edge technology rather than innovation.
But truth be told, neither of them would have the manpower, talent, or IPs/Games to pull a ''Nintendo''. People always says that Nintendo is doing their own stuff when Nintendo starts winning the sales race, but there is some truth to that, in the sense that only Nintendo could do the stuff that they do.
Edit: Oh, I seemed to have missed the OP's point. Still, my point stands. MS is halfhay on it's way to being third party, so that won't matter to them, and Sony will be commited to the PS5 archtecture for the next 7 years or so.
My (locked) thread about how difficulty should be a decision for the developers, not the gamers.
https://gamrconnect.vgchartz.com/thread.php?id=241866&page=1







