PS5: Showcase Plan: https://wccftech.com/playstation-5-digital-showcase-event-confirmed-for-june-4th/  

PS5 backward compatibility: https://wccftech.com/sony-games-can-only-be-enjoyed-on-ps5-no-xbox-crossgen/  

Xbox support: https://www.gamespot.com/articles/xbox-exec-microsoft-believes-in-supporting-past-co/1100-6477905/