Well-known film industry insider MyTimeToShineHello reported on Twitter/X that "the Shadow movie is officially in development at Paramount, and the studio also wants an Amy project."
The ending of "Sonic the Hedgehog 3" sets the stage for such speculation. In one scene, Sonic is attacked by Metal Sonic squads near New York, and he is rescued by Amy Rose. And the post-credits scene shows that Shadow survived the events of the film, which leaves room for the character to appear in future projects.
Paramount has not yet made any official announcements about new films, but insider Daniel Richtman recently reported that the plot of "Sonic the Hedgehog 4" will be based on Sonic CD, will fully introduce Amy Rose for the first time, and will touch on the theme of time travel.
The premiere of "Sonic the Hedgehog 4" is scheduled for March 19, 2027.