Rocket League Anniversary Event ends on July 23, make sure you have earned enough balloons to unlock the golden eggs and cosmetics while they are available! After the birthday party, what is the next Rocket League update we can expect in the later summer? You can find out the new things will come to the game in July-August!
Source: N4G PC Next Rocket League Update Coming In August – Throwback, Cross-Platform Party, Rocket Pass and More!