Chorus Kids pic was fake according to someone else. I'm not paying attention to this stuff now because it's obvious people are making all sorts of things up to coincide with the real leaks. Will just wait till I see confirmation from Nintendo.
The rumor is that this was an internal leak at Nintendo and the person behind it, who was in the process of sending content to ESRB rating, has been fired and is being sued. He supposedly still has a 3DS copy of the game and has a 3DS that is used for internal ratings.