Details?
Minecraft being notable. Java version (?), Windows 10, X-box, Switch, and Wii-U are all being connected on "ONE MASSIVE SERVER"/cross-played in an update in a few months.
Sony was noticeably absent from the video (no console built in world for it), tweets confirmed: Sony doesn't want to play ball.
Edit: And apparently Rocket League will be X-box-Switch-PC-><-PS4 now.
Congrats, Sony. You fucked yourself. If X-box and Switch owners can play together, hahahaha, who is gonna get the PS4 version?