Quote Originally Posted by MindofShadow View Post
Jon's parentage was basically a big waste of time TBH
In the least, it means he can ride a dragon. And it means is one of the reasons Drogon doesn't flat out kill Jon when he see's her next to Danys dead corpse.

Didn't mean as much as it could have meant though. But who knows... down the line there could still be more. They left it open ended enough to continue the story if anyone really wants to.