Board Thread:Theories/@comment-13895380-20171112172827/@comment-26600747-20171117183830

If it is Chic (and I hope it isn't because, as stated elsewhere, the long lost sibling thing has been done to death) I guess it could be that he is trying to expose the sins of Riverdale because one of those sins led to his birth and his being "hidden."

I guess just because Chic will be a new addition to the show, that doesn't mean he is someone Betty has never met. Maybe he was around occassionally when she was younger but passed off as a cousin or friend of the family or something.