Today's Sonic Central stream didn't give us a release date for Sonic Superstars, but it did reveal a new Lego DLC.
Dr. Eggman officially joins Lego Sonic's second wave of releases
Shadow Costume Coming To Sonic Superstars - Game Informer
Reminder: Sonic Superstars Free Amy Rose Outfit And LEGO Sonic
LEGO DLC Coming to Sonic Superstars!
The Intriguing Disappearance of Sonic Superstars DLC Within Minutes
Standard & Physical Copies of Sonic Superstars Can Be Upgraded To
SONIC SUPERSTARS for Nintendo Switch - Nintendo Official Site
So, is this worth buying? : r/casualnintendo
Sonic Superstars Has Launched On Steam - But There's A Problem
Sonic Superstars
Buy SONIC SUPERSTARS Digital Deluxe Upgrade featuring LEGO Xbox
SONIC SUPERSTARS - Modern Amy Costume on Steam
SEGA Teams Up With LEGO For New DLC In Sonic Superstars