The third Sonic the Hedgehog movie, aptly named Sonic the Hedgehog 3, made its premiere on December 10. The release of the film in the United States isn't even until tomorrow, December 20th. That hasn't stopped Paramount from announcing that a fourth film, Sonic the Hedgehog 4, will be coming in Spring 2027.
Variety is the first to announce that a fourth film is already being worked on. This news seems to be supported by another post-credits...