Microsoft is not going to outsell Sony in the console space worldwide with the release of Xbox Scorpio. I think Microsoft knows that. What they do want to do is get a good chunk of the gamers that they lost, back to the Xbox side of things. The problem with that view is the console isn't the war...it's just a battle in the overarching war that is ecosystems. Those sales of consoles aren't going to mean much (to MS) if (a huge if) MS is getting good software sales from PC gamers in the Windows Store and combine it with Xbox console sales. Right now MS is getting beat from Steam and Sony. It seems to me that MS wants to take away gamers from both fronts and combine it with their console players and get a healthy amount of users on their turf.
Sony knows this as well and they have to play to their strength and that's being a worldwide brand, good hardware, and a place to play all the games and do futuristic stuff like VR. Sony knows that they don't have the same reach that MS is trying to build and therefore they are trying to keep people in the Sony ecosystem by "locking" users in with the PS4 Neo with BC and make more exclusives with PSVR. It's all about perception and how you market your product.
This power struggle means nothing if you can have people feel the need to never want to leave. I keep talking about this stuff because to me, it's the most interesting part of this next round of system launches and updates to the respective platforms.
This and it's all about getting the branding back to where it was and move forward.