I think the worry is CoD Warzone disappears as that is the game drawing the big crowds and money from CoD. But as with previous Microsoft acquisitions, they seem to leave the 'games as a service' running on all consoles, like Minecraft, Elder Scrolls Online. So I would expect going by that track record, Warzone will continue as is, but CoD 2023 and beyond will disappear from PlayStation.That's what the same statement meant for Bethesda properties - stuff that was signed and contracted prior to the aquisition remained multiplat, but future stuff (Starfield, TES6, whatever the next Fallout will be) is all MS only.
If the same holds true for Activision, whatever's after COD Vanguard will remain multiplat, but don't hold out too much hope for the one after that.
Not that COD has been any good since MW2, mind.
I would also bet if the war such a thing as Elder scolls online 2, or Warzone 2 they would be exclusive. Interesting time ahead either way.
What Im looking forward to is, if CoD goes from PlayStation, that leaves quite a big hole for new games to come in and flourish, the way this changes the gaming landscape is crazy.