https://www.eurogamer.net/phil-spenc...vent-next-week
Whilst i think the console "wars" have been entertaining at times for marketing and so on, i think with MS making such a massive purchase of Activision Blizzard and also moving more heavily into the PC space with Xbox, perhaps at a 3:1 outsold ratio, they may have decided to dip their toes in to test the waters by partnering to Sony.
If we're actually being honest, Sony and MS are not the fierce enemies gamers like to make out. The PC space for example where Sony makes hardware has for a long time worked with their OS and other packages, Sony use MS for many other services and so this possible Xbox on PS hardware isn't an entire pipe dream. Hell, does anybody remember when cross platform online play wasn't a thing?
Sony will win by getting additional revenue as will MS and to "fans" this will be seen as a "WIN" from Sony game based sticklers as to Xbox acknowledging Sony won this "war" and MS as to opening up a potentially huge revenue stream.
MS also probably will not release their big titles on launch bar perhaps what could have been 3rd party franchises prior to the Activision deal, so perhaps no Halo as an example u til much down the line. Think say how Sony try to position PlayStation then PC releases 9f titles presently. Also, Xbox doing a PC streaming service like Sony operate EA Plus and getting a 30% revenue cut is likely to be an incentive they're likely to accept as the cost of doing business with an agreement to take slightly less for subscriptions being bought over from Xbox/PC and just signed in with.