User blog comment:Angren Túrë/How do you react?/@comment-10390252-20130916163102

I've been long-innoculated to this sort of thing on the Rooster Teeth forums. I'm really not very good at predictions; I get maybe one in five right if I'm lucky. So long as the eventual reveal is basically plausible, I'll be okay.

I'd also add that, at this moment, we're still mostly shadow-boxing. Most 'theories' are little better than guesses based on gut instinct at this point. To take your example of 'who is the adopted one?' There is about the same strength of on-screen and Creator Interviews to support both Yang and Ruby as the adopted one, depending on how you choose to evaluate the evidence. We can't really determine which is more likely until we know more about Summer Rose, the woman Blake was hunting in the Yellow Trailer and Uncle Qrow.