Psyonix has revealed that a playlist called Rocket Labs will be included in the upcoming February update.
This playlist will give players the opportunity to play on prototype arena layouts, with the developer then using feedback to determine whether or not should these arenas get the final artwork assets applied to them. The February update includes three prototype arenas: a circular arena similar to Utopia Retro from Supersonic Acrobatic Rocket-Powered Battle Cars, a arena with varied elevations for more aerial action, and an arena that features two separate openings for each team's goals.
The update also brings the Wasteland arena over to competitive playlists. The Snow Day mutator game mode, including its Winter Stadium map, are going to be added as permanent additions to exhibition and private matches. In addition, a new report function will allow you to report players that show disrespect in the chat.
Rocket League is currently available on PS4 and PC. The game will be coming to Xbox One in Mid-February.