Pure PlayStation: Milestone and Feld Entertainment have announced today that another Supercross game will be releasing early next year. Monster Energy Supercross – The Official Videogame 3 (bit of a mouthful) will be releasing on February 20th, 2020, and will be available on PS4, Xbox One, PC/Steam, Google Stadia and Nintendo Switch.
Source: N4G PC Monster Energy Supercross – The Official Videogame 3 Announced, Releasing February 4th, 2020