All of the characters revealed so far are starters. It pisses me off so much when anyone suggests otherwise. Sakurai isn't the dumb MK8 team, he is not going to reveal a character that you have to unlock except for maybe third parties, but I think they too will be starters. Theres no real reason to have the unlockable unless its a secret character, which obviously any character officially revealed isn't secret.
Why isn't G&W on the website? Its because he's a unlockable character that was just used to do that little video in Pac-Man's trailer. Like the previous games, there will probably be atleast 4 unlockable newcomers if not more. They could be all clones, but they still will be new.