After the negative reaction to Sonic's design in the first film, the release date for Sonic has now been pushed to February 14, 2020. The original release date was November 8, 2019 but many fans were concerned, given the announcement of a redesign, that the visual effects would be rushed.
Sonic The Hedgehog Movie Delayed As Sonic Gets A Redesign - GS Universe News Update
After negative feedback on the design of Sonic the Hedgehog in the latest trailer, director Jeff Fowler has announced that the movie will be delayed.