This post contains spoilers for the most recent episode of Game of Thrones. You've been warned.
Now that we're past the initial freakout over Jon Snow being alive, let's talk about the preview for Episode 3 because it looks EPIC.
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Namely THAT BIT AT THE END, which is probably, maybe, definitely a young Ned Stark facing off against Arthur Dayne at the Tower of Joy.
The Tower of Joy is where, according to the so-popular-it's-practically-canon theory R+L=J, Jon Snow was born.
It's where Rhaegar Targeryen took Lyanna Stark when he "kidnapped" (or, as many fans believe, eloped with) her. It's also where, after Robert Baratheon killed Rhaegar, Ned fought through the Kingsguard "protecting" Lyanna, found her dying in a "bed of blood" and made her a promise. Most fans believe that the bed of blood was a result of childbirth, and the promise Ned made was to look after her newborn son and protect him from the people who would want him dead (namely Robert Baratheon and the Lannisters, who were busy killing off all the Targaryens they could get their hands on). You can read more about the theory here.
There were a few hints about R+L=J last season, and with Episode 2 already giving us a flashback featuring Lyanna Stark — not to mention reviving Jon Snow — all signs point to this theory finally being confirmed in the next episode.
If it's true, it means Jon Snow is a Stark AND a Targaryen (i.e., a song of ice and fire).
That means he is probably one of the three heads of the dragon/dragon riders, and potentially has a legitimate claim to the Iron Throne. Now that he has died, his oath to the Night's Watch that he would "wear no crowns and win no glory" is kinda null and void — and interestingly, the name of Episode 3 is "Oathbreaker". All of this supports theories about Jon being a MAJOR contender in the game moving forward.
