https://www.cnet.com/news/sony-ceo-says-you-cant-have-cross-play-because-playstation-is-the-best/
I guess it isn't happening any time soon.
today, Sony CEO Kenichiro Yoshida reportedly told the press that his company generally doesn't believe in the idea of opening up the PlayStation to cross-platform multiplayer.
"On cross-platform, our way of thinking is always that PlayStation is the best place to play. Fortnite, I believe, partnered with PlayStation 4 is the best experience for users, that's our belief," he said, according to The Independent.
I guess it isn't happening any time soon.