https://www.gamespot.com/articles/rocket-league-2-is-unlikely-as-dev-focusing-on-gam/1100-6460185/

Rocket League has been one of gaming's biggest success stories of the past few years. Launched in July 2015, the game has 45 million registered players by developer Psyonix's latest count, with between 6 million and 7 million people playing every month. Given the game's huge success, you might be wondering if a sequel is coming. It's not, at least not anytime soon, according to game director Scott Rudi.

Rudi, who joined Psyonix earlier this year, told GameSpot in an interview that the studio is focused on treating Rocket League like a platform. The studio is pouring resources into supporting the game with new content instead of making a full-on sequel.