I believe I have a good enough handle on the genealogy of the characters for this prediction to function, we'll see:
- The last time Ned talked to Jon, he said 'one day, we'll talk about your mother'
- Set Khaleesi wanting to break the "wheel" aside for a second. The Targaryans, or Daenarys Targaryan, as the first-born child of the Mad King is the rightful heir of the throne because she's next in line, but what if she isn't.
- Ned Stark was with Robert Baratheon in Season 1 after he was nearly killed by the boar. Robert, dying, instructed Ned - who was there at his [death]bedside - to write out the will as some form: "the throne shall go to the first born of the rightful king"
- We know dragon glass can kill white walkers. We know Khaleesi has 'dragon blood running through her veins'. We saw Jon Snow just unexplicably kill a white walker. He wasn't strapped with dragon glass, he didn't get to it in time.
- He surprised
himself when he killed the white walker. That's important.
- Because Ned never came back and talked about his mother. He doesn't know what's inside of him. His mother is Khaleesi's mother. Khaleesi and Jon are hermano y hermana / brother and sister.
- Jon Snow - the older child - is the rightful heir to the throne after the Khaleesi Takeover, per Robert Baratheon's will.
