I guess I could point some things this got "right", but honestly, there isn't alot.

>Sonic Rangers being the name of the game after SEGA leaked it themselves by accident. Eurogamer link

>Leak mentions an attack named "spincycle" where you run in a circle and any enemy inside it takes damage, Sonic performs an action similar to this.

>Leak mentions that Roger recorded new voicelines for this, and up to that point, we didn't know if he was to return, and as a little bonus, we know that a voiceactor can record some lines before being "let go", since Jason recorded some lines for Colors before being replaced.

>there is a mention of a "cyberspace" and in the teaser, Sonic appears to have some digital effects on him, like he is entering or leaving the place.

That's the best I got, not much and honestly, it could still be all a coincidence and it's fake, so there's that, have a nice day.

Yeah, no, until we start seeing more footage, I'm not buying any of this. I'm gonna have to see some more evidence to back up claims like this.