Board Thread:Site Discussions/@comment-9670660-20140526211422/@comment-15588403-20140526212308

ACTUALLY IT WAS ANNOUNCED THAT SHADOW WILL BE IN SONIC BOOM.

He will have miminal changes to his design and personality but thats about it, http://www.tssznews.com/2014/05/20/source-mystery-sonic-boom-character-not-marine-shadow-to-return/

More info for you

Also that new charcter Its not Marine!