It took six full seasons (plus one episode) for Daenerys Targaryen (Emilia Clarke) to return home to Westeros. Now that she's back in the Seven Kingdoms, it's only a matter of time before her story starts to intersect with everyone else's.
With that said, at Comic-Con, HBO unleashed a new >Game of Thrones trailer that ends on an incredibly exciting note for everyone waiting to see Dany interact with the show's Westeros-based contingent. In the final scene, the Mother of Dragons meets up with Melisandre (Carice van Houten) in the great hall of Dragonstone. The Red Woman makes a grand overture: "I believe you have a role to play — as does another."
She's not doing a Yoda impression, but Melisandre's words nonetheless boast shades of that epic Empire Strikes Back moment in which the old Jedi Master teases that there's hope for the galaxy beyond just Luke Skywalker. And indeed, there's a similar thread here in that there are more than just the one Targaryen: Daenerys aside, we also know Jon Snow (Kit Harington) has fire coursing through his veins, thanks to season six's reveal that he's the secret son of the late Rhaegar Targaryen and Lyanna Stark.
Author George R.R. Martin's novels on which Game of Thrones are based come under the overarching title A Song of Ice and Fire, a name that still lacks an official explanation in the text. But fans have speculated for years that the true meaning of the title comes down to both Jon Snow and Daenerys Targaryen putting the ice and fire of their family names to good use in the great war ahead. Melisandre's moment at the end of the new trailer speaks to that theory, strongly implying that Dany and Jon need each other if either one is to survive the dark and terror-filled nights ahead.
Just as Melisandre is about to put Jon Snow on Daenerys' radar, the King in the North already has the Dragon Queen on the mind. In the season seven premiere, Samwell Tarly (John Bradley) discovers that Dragonstone sits atop a great mound of dragonglass, an instrumental substance in the war against the White Walkers. The previous preview for this coming week's episode, "Stormborn," already shows Jon entertaining the idea of seeking out Daenerys' help. In this latest trailer, however, he specifically says her name: "Daenerys has dragon fire."
Do yourself a favor and take a moment to geek out over hearing Jon Snow say the word "Daenerys" for the first time. We waited a long time to hear him say that word. Feels good, doesn't it? Now imagine what it's going to be like when we see Jon and Dany in the same scene together.
It's alright. Take another minute. When you're finished, watch the trailer again.
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Source : http://www.hollywoodreporter.com/live-feed/game-thrones-comic-con-trailer-explained-comic-con-2017-1023228