Something that is interesting to speculate on is the reason why Metal Sonic will be returning. In Sonic CD he was there to steal Amy from Sonic and hopefully this will not be rehashed! Wouldn't it be HILARIOUS if Tails's only role in the game is to be kidnapped by Metal Sonic and he isn't actually playable (ala Game Gear Sonic 2).
So why do you think Metal Sonic will come back? Is it going to be really cliched and will he betray Robotnik? I hope it will be something more exciting!
So what do you think?
I'm betting that Metal Sonic has become the overlord of Ponies and will is trying to destroy MY LITTLE PONY for stealing my wonderful idea!