Psyonix has announced that a brand new Rocket League update is coming later this month on September 28, and will bring with it a new arena, the start of competitive season 6, and a bunch of new customization options.
Following the Autumn Update, players will also have the opportunity to help test two major upcoming features. How many different dragon-themed Player Banners are we cooking up? Another thing being tested is Tournament Mode where players can create their own tournaments within Rocket League. In-game Tournaments would allow all of our players, from Rookie to Rocketeer, to take part in competitions without ever having to leave the game client. Keep in mind that the new Psynet party system and Tournaments are not included in the Autumn Update, with their testing phases beginning later this year. However, Tournaments will launch on all platforms in a future 2018 update.
While the PsyNet Party System is Steam-only, this is the first step in enabling the possibility of supporting cross-platform parties at a later date.
The beta will run through Steam, because it "allows us to make changes and collect performance feedback more rapidly than any other platform", and while nothing is carved in stone at this point, the goal is to have it launched before the end of 2017, and then rolled out to all platforms as a regular feature sometime next year. You'll still use the "Create Party" button as you normally would, but instead of seeing a Party invite in Steam, you'll see new in-game notifications alerting you to a Party invite.
Finally, Psyonix touched on the upcoming Events system, which will enable players to earn additional auto customizations through time-limited events.
Psyonix also shared some more information regarding the new Events system that will be arriving in the Autumn Update. One of the key additions is the new seasonal arena called Farmstead, which as you may guess allows for matches to be played in a farm location.