Board Thread:Speculation, Theories, and Rumors./@comment-679780-20140614233050/@comment-4892653-20140617213957

Mystic Monkey wrote: Matteso586 wrote: Maybe this will convince you to make predictions for Shadow. http://www.tssznews.com/2014/05/20/source-mystery-sonic-boom-character-not-marine-shadow-to-return/ I already have predictions for Shadow. He will lead a fireteam a lot like Sonic's only while Sonic's group are independant heroes, Shadows group will be by GUNs organisation. Just like how Team SOnic counters GUNs Team Dark. I also think Shadow would wear a red scarf like Sonic's brown one.

We don't know if GUN, Rouge, or Omega will be in Sonic Boom. When that link says minimal changes to his personality and appearance, there's a 50% chance that their keeping the serious part of him. And its obvious that the changes to Shadow are more minimal than the confirmed ones for other characters.