yep, it's really going to come down to Sony to put their foot down at the end of the day. Even if MS keeps the franchise multiplat, they'll probably bake in some sign-in on the playstation's end to funnel PS users into their Xbox MAU, devaluing playstation in the long run.
Then they also have the marketing rights forever, and everyone knows COD is a walking Xbox advertisement after the acquisition closes.
if MS makes it exclusive, then they kiss the #1 franchise moniker goodbye, and COD's numbers get shrank in half, and COD gets completely overtaken by other franchises still on PlayStation.
the only way forward for sony is to just take it off the platform and don't let MS get their way. Never let them use PS customers as MAU. Never let them hold COD content and dlc hostage.
MS is playing a very dirty and devious game buying full publishers outright. this is unprecedented, and an act of war. it needs to met with complete hostility.