We stated that there seemed to be a possibility of the new mainline Sonic the Hedgehog game, Sonic Frontiers, appearing at the The Game Awards. However, it seems as though Sonic Frontiers is not the surprise, as it has been revealed that The Game Awards will instead debut the first trailer for Sonic Movie 2.
— Sonic the Hedgehog (@SonicMovie) December 8, 2021
Sonic Movie 2 story
After settling in Green Hills, Sonic is ready for more freedom, and Tom and Maddie agree to leave him home while they go on vacation. But, no sooner are they gone, when Dr. Robotnik comes back, this time with a new partner, Knuckles, in search for an emerald that has the power to both build and destroy civilizations. Sonic teams up with his own sidekick, Tails, and together they embark on a journey to find the emerald before it falls into the wrong hands. Being directed by Jeff Fowler, and starring Jim Carrey, James Marsden, and Ben Schwartz.