Correction: Everyone else would say yes.
with enough teasing sony might be able to say yes :P
Oh I am sure sony would have to budge every now and then. Like they have with COD and I think Fortnite.
My point though was that if it is left to sony, they would say no. We all know what MS has been pushing so they would say yes.
Sony doesn't want to do it for the exact same reason MS wants to do it. Just in reverse, sony doesn't want it so you will have to own a PlayStation, MS wants it so you wouldn't have to own a PlayStation. That is the only reason out there that MS has been pushing or this. You don't have to go buy a PS to game with your friends since you have an Xbox.
And all the support they are throwing in switches direction? Its because they don't see the switch as a threat. If they were so "pro-consumer" as "we even release on a competing platform" would suggest; then they should release their games on the PS4/5 too. Now that would be interesting.