Brace yourselves, "Game of Thrones" fans: You have only 15 hours of content to look forward to, stretched out over two years. Just 15 hours left to see if Jon Snow is stabbed to death for a second time. The hour count may change, star Iain Glen warned, but we can only hope the total goes higher, not lower.

Glen, who plays the greyscale-afflicted Jorah Mormont, recently talked to Radio Times about the "extraordinary" episodes ahead. He mentioned the number of episodes -- seven confirmed for 2017's Season 7, and six as the still unconfirmed-by-HBO count for Season 8. That's 13 episodes, which is the same number we've heard for a while. So it was actually encouraging to hear Glen slide in this detail:

"There are fifteen more hours left in Thrones as we understand it, but that may change, but that's as far as we know."

That 15 number can't becoming out of nowhere. They are almost done shooting Season 7, which premieres this summer, and the writers are probably already hard at work on Season 8, the final season, which should start shooting later this year for a 2018 premiere. If there are 15 hours for 13 episodes, that means we're in for some supersized episodes.

The Season 6 finale is the longest episode we've had to date, and that was "only" 69 minutes, breaking the previous record of the Season 4 finale, which was 66 minutes.

The next two seasons would need to add two additional hours of (commercial free!) programming to go from 13 hours to 15. Perhaps we're in for 2-hour finales -- for Season 7 and the series finale? Or perhaps one or both premieres will be supersized to 1.5 or 2 hours. Or one of the penultimate episodes, leading into a finale? As of now, we can only speculate, and wait for official word from HBO on anything.

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