They said be prepared. But OMG this is taking epic proportions. Rocket League is expanding on multiple levels in the game. The new addition to Rocket Labs: Pillars, is yet another feature that is coming in June.
As stated on their website Pillars will be available both on the online and offline exhibition play and will be added to the Rocket Labs playlist. You can be sure that Pillars will be played alot.
More news is coming, so stay tuned!