Xbox one opens cross-network to play ps4 and other platforms
Microsoft has announced that it is enabling cross-network play for developers, which would allow Xbox One owners to play against people on PC networks and other consoles.
ID@Xbox Director Chris Charla said "Of course, it's up to game developers to support this feature, and Xbox Live players will always have the option of choosing to play only with other Xbox Live players,"
"We're thrilled to confirm that Psyonix's Rocket League will be one of the first games to take advantage of this new capability by enabling cross-network play between Xbox One and PC players, with an open invitation for other networks to participate as well."
Hopefully we will get to see cross-play between the Xbox one and PS4 but it depends if Sony want to. There's a good chance we'll see developers on the Steam platform making use of the new tools.