Game of Thrones season 7: Another dragon north of the Wall?

The shooting of Season 7 of Game of Thrones continues and gives us more info on what to expect from the sequel. Warning, spoilers.
The wait may still be long until this summer and melty continues to help you wait. So we wondered what would happen to Jon, Daenerys and the other after the war against the White Walkers in Season 8 of Game of Thrones , it now offers some new shooting. Beware of spoilers in the result because will also be based on the intrigues of the season 7 have leaked some time ago . As some already know, several actors were seen in Belfast for shooting, including Kit Harington (Jon Snow), Iain Glen (Jorah Mormont) and Rory McCann (The Hound). But that’s not all as a huge green block with handles and places where climbing that could well become a big dragon after going through the special effects was also seen near the shoot. We already know thanks to other spoilers that Jon and his band will probably try to capture a White Walker north of the wall to prove their existence, but could they fall on an enemy much bigger than them ?
We must admit we love to discover the existence of a new dragon in Game of Thrones , and more a living north of the Wall. However, the fact that Emilia Clarke (Daenerys Targaryen) was also spotted in Belfast lets us think that this huge dragon might well be Drogon. This would mean that the mission of Jon, Jorah, Tormund and other turn sour and Daenerys may assist them with his dragon . All this is evidently at the stage of speculation since we are simply trying to find an explanation for the presence of a dragon north of Westeros. Moreover, Dany’s presence during the mission of Jon Snow would enable him to see for himself the existence of the White Walkers and could thus convince him of the true priority. If Daenerys seems determined to take over the Iron Throne, it could be that his objectives change rapidly in season 7 and this scene may be the trigger … While waiting to know if it is as good as how things are going to happen, we wondered if the season 8 Game of Thrones was going to be longer than expected. What do you think ?
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