Knuckles's new look is very distracting in a bad way. He's so out of proportion compared to the rest of the cast. Hopefully it's just his alpha look that they will change later on in development. Knuckles doesn't need to look strong in order to prove his strength as he has already done so in past titles.
Bad News, Sega is already Launching a 52 Episode CG Cartoon and Apparently tons of merchandise along with it.
I just hope the game and Show are good at least....
For Character Designs...

Honestly, the over-use of Bandage wrap is a tad distracting...
Knuckles should be a tad shorter, and have a more toned slim, Batman like Muscles instead of something closer to Bane
The Rest Don't look too bad, Tails is actually very good, and the Sonic design Isn't too foreign from his modern design.
Amy's Design isn't bad, but doesn't really try to resemble her personality like the other 3....
Game-wise I think SEGA is going for a Sonic Heroes style game, Story wise I think they are trying out the Archie route with the freedom fighters...
I can give it a chance, but please re-proportion Knuckles, he kinda comes off as the Nice Dumb Muscle, Kinda like the Gorons from Zelda's N64 era