Trailer says about as much for what to expect as Sonic Colors' teaser did for that game. In other words, a vague-at-best glimpse of what came to be a surprisingly and relievingly great game, especially for the series in question.
God help them in making that pattern the new 'Sonic Cycle'.
Basically, the game looks amazing, but the the requirements for the pc version are insane. I actually have to upgrade my pc for the first time in about 3-5 years just for this game.