The final season of Game of Thrones promises to wrap up the series’ many story arcs in a satisfying conclusion - but with a fictional world this big, there’s no way there won’t be some loose ends remaining. There are simply too many characters, too many realms, and too many plot threads for there not to be some questions left unanswered when the song of ice and fire reaches its end.
So many things have already happened on Game of Thrones that fans can be forgiven if they’ve forgotten entire plot points or character arcs. The events of Season 1 seem like a generation ago, and the show's creators have been laying the groundwork for the finale ever since. Even if they stick the landing, they won’t be able to make every piece of setup pay off - there just isn’t enough time left before the final fight.
The character arc of Jaqen H’ghar in Game of Thrones is one of the most difficult to track because it’s impossible to know how many Jaqens have played a role in the story. As a member of the Faceless Men, the original “Jaqen” that Arya Stark encounters in Season 1 is merely wearing one of his many faces, and there’s no telling if the Jaqen she encounters in Braavos is the same individual.
Such as it is, concrete answers about the character of Jaqen H’ghar - including what his purpose in Westeros was and what mission he may have been fulfilling for the Faceless Men - have been few and far between. As Arya seems to have left the House of Black and White firmly in her past, it also seems unlikely that those answers will ever arrive, and thus Jaqen’s origin story will forever remain a mystery.
From the very first appearance of Meera and Jojen Reed in Season 3 of Game of Thrones - and from the first mention of House Reed in the A Song of Ice and Fire novels long before that - the appearance of their father, Howland, has been hotly anticipated. After all, Howland is the only surviving member of the party Ned Stark took with him to “rescue” Lyanna from the Tower of Joy, and thus the only living individual in the story to know the true story of Jon Snow’s origins firsthand.
Several seasons later, however, Howland is still missing in action, and Jon’s secret parentage has since been revealed through other means. While Howland does appear in a flashback sequence via Bran’s greensight, he remains hunkered down in Greywater Watch in the present day, apparently content to sit out the fight against the White Walkers.
The Seven Kingdoms are massive, and some regions have been cut out of the Game of Thrones plot in order to save space in the story. While the semi-autonomous land of Dorne plays a part in several seasons of the series - and has a huge role in the books - all that groundwork appears to be for naught, as the Dornish have seemingly been written out of the show.
When Ellaria Sand leads a coup against Doran Martell and takes over as ruler of Dorne, it reads like a set-up for Dorne to become a major power player in Westeros. Instead, the Dornish arc ends with Ellaria and the Sand Snakes being unceremoniously slain by Euron Greyjoy and Cersei Lannister. There’s no way of knowing what the political situation looks like in Dorne now, and no time left in Game of Thrones to provide answers.
Daenerys Targaryen’s story arc as the ruler of Meereen is all about learning the responsibilities of leadership, but that’s seemingly left behind the second Essos is in her rearview mirror. Daenerys leaves her paramour Daario Naharis in charge of overseeing the transition to a representative Meereenese government, and then sets sail to Westeros, never to think or inquire about Daario and the fate of Meereen again.
Even if Dany has asked for an update on Meereen offscreen, the creative minds behind Game of Thrones haven’t deemed such information as necessary to the plotline moving forward. With so many problems occurring in Westeros already, it seems unlikely that any further time will be spent on the ongoing issues of an entirely different continent.