(embed) https://www.youtube.com/watch?v=lwjPEcWU5Fc (/ embed)
Sega's recent live stream of Sonic the Hedgehog showed several ongoing projects, such as a remastering of Sonic Colors called Sonic Colors: Ultimate that will hit PC as Exclusive Epic Store on September 7th. The stream ended with a 30-second teaser of Sonic traversing a forest as various digital effects flew from his feet, leaving a bright trail that formed a circular pattern seen from above. It’s a new Sonic Team game that will hit PC in 2022, and that’s all we know for sure.
If people who claim to concentrate have tried an early version of the game (via Resetera) are reliable, however, it will be an open world with "ubisoft towers" and "located on a shady, grassy and uninhabited island dotted with ruins", with an "XP system with skill tree" that allows you to unlock skills like “spincycle,” which seems to be what Sonic is doing at the end of the teaser.
The leaks also claim that the open-world puzzle solution will reward you with orbs that open portals to "cyberspace," which would explain all those digital effects around Sonic's feet, where levels like those of the Sonic Unleashed fast movement to win Emeralds of Chaos. Oh, and apparently, "a ghost girl fills your ring count."
I would be more skeptical about these rumors except that one of them, as of July 2020, mentions that the game was called Sonic Rangers. This name was found in the metadata of a 4K filtered version of the new teaserand then appeared directly in an official press release sent by Sega Europe. That press release highlighted all the content of the live broadcast and called the next game "Sonic's next flagship" (well, "nächsten Sonic-Flaggschiff", but you can count on my ability to translate German).
Eurogamer Sega said the press release was "an earlier version that was shared incorrectly."