Just before he recovered from his drowning, to claim his rightful place in the Iron Isles, he said that he plan to build plenty of ships and bring them to Daenerys Targaryen, played by Emilia Clarke, and that she is also planning to marry the Mother of Dragons so that he can finally lay claim to the Iron Throne in King’s Landing and become ruler of the whole of Westeros.
But Yara and Theon beat Euron to the punch as they escaped Iron Isles by taking most of their men and all of the ships to Daenerys.
Towards the Season 6 finale, it was shown that Yara and Theon are now with Daenerys as they sail to King’s Landing in a plan to boot out Cersei Lannister from the Iron Throne after she took over from her son Tommen.
Apparently, there will be a showdown among the Greyjoys in Season 7 of “Game of Thrones” between Yara and Theon on one side and Euron on the other.
The rumors actually emanated from recent spoilers showing Yara and Theon engaging in a battle at sea with their uncle Euron.
Based on behind-the-set leaks, Euron shall reportedly be able to catch one of the two siblings and used him or her as bait against the other.
The spoilers are also saying that since Yara and Theon have already joined forces with Daenerys, Euron will be teaming up with Queen Cersei in Season 7 of “Game of Thrones.”
The reports seem consistent with previous rumors that Euron Greyjoy will be a major character in Season 7 of “Game of Thrones.”