Rocket League PS4-Xbox One Cross-Play Completed, Just Needs Sony’s Approval

Psyonix vice president Jeremy Dunham says work on Rocket League's proposed cross-network play between PS4 and Xbox One is now complete, could be up-and-running within "a few hours", and only requires Sony's approval to be released.
Speaking to IGN, Dunham explained just how close the groundbreaking feature - which would allow play across Xbox Live and PSN for the first time - could potentially be:
"Right now," explained Dunham, "we're literally at the point where all we need is the go-ahead