Board Thread:General Discussion/@comment-92.22.56.211-20141006153026/@comment-3146930-20141007031409

But the problem is that there is always a slight chance X is related to Y unless officially disproved, but even then people deny that the official disproving was actually true and the creators were just joking. There are lots of people that still think Cinder is Ruby or Yang's mom despite all the evidence it can't happen. Others think that maybe she is their half-sister or distant relative. Jaune and Yang both have blond hair, so it is possible they are related. It is also possible that Glynda is also Jaune's aunt as they both share similar hair color. Oobleck is possibly related to Ruby in some way as a child may have a similar Semblance to one of the parents; so Oobleck and Penny may share a common relative. Nora is possibly related to Roman as they share similar hair colors and also, Penny is actually made by Nora's father to replace Nora's now dead sister, explaining the similar hair colors and odd social behavior.

In the end, all of these have a very slight chance of being true