I don't think Microsoft is done buying big studios, they will have another 1-2 big guns in their roster before this next gen is over and they will have a commanding lead in the streaming/service side if I had to guess right now (ie: the fabled Netflix of gaming) which is more important than physical hardware install base.
But even on that side I think MS will eat into Sony's marketshare, particularly in North America, I think they could outsell the PS5 in US + Canada.







