There's more...the final game in the Sega/Nintendo exclusive deal is actually based on this cartoon, and will be a prequel to it. It's also called Sonic Boom.
Sega is actually bringing back other playable characters.
Instead of Sonic Team, Sega is working with Big Red Button on this game. Big Red Button is a studio with a lot of ex-members of Naughty Dog.
Looks like some kind of Sonic Heroes teamwork going on lol.