Hold your khalasars! "Game of Thrones" Season 8 may not have just six episodes after all.

HBO is waiting for an official decree from "Game of Thrones" showrunners David Benioff and Dan Weiss before giving a green light to the eighth and final season. It's a formality -- there will be a Season 8 -- but the network is leaving it up to D&D to decide exactly when the show ends. But whatever the final count -- be it the six episodes we've heard over and over, or more to get us to "15 hours" or beyond -- HBO is going to wish it were even more.

Here's what HBO programming boss Casey Bloys told TVLine:

"The only thing we're working out is how many episodes they want to do. [...] They're still figuring it out because I think they're trying to get a shape of the season. They always do what they think [will yield] the best version of the show. It's all about how many they're comfortable [with]. But I'll always take more."

He added, with a laugh, "If you're afraid we're not going to do an eighth season, I assure you we're going to."

Bloys gave a similar quote to Entertainment Weekly:

"They're still figuring out the shape of the season, what they want to do. I'll take as many as they want to do. If they give me eight, I'll want 10. But it's really up to them. They'll let me know."

He also addressed the idea of a spinoff, telling EW a prequel makes most sense:

"A prequel feels like it has less pressure on it [than a spin-off]. [Author George R.R. Martin's history of Westeros] gives you areas in which to say to a writer, 'If you were going to do this, then go flesh it out,' and we'll see what comes back. But I don't feel any pressure that we have to have something."

They'll do something, all right, we have just to wait to see what it is. But let's get through the main show first.

GoT Season 7 is still filming, having gotten a late start to capture real winter locations. Liam Cunningham (Davos) and Iain Glen (Jorah) both mentioned Season 8 having six episodes, with Glen saying they had been told there were 15 hours left to the series as a whole, from Season 7's seven episodes to whatever comes in Season 8. If it's still six episodes, some of those hours would have to be supersized hours to get to 15 hours. Cunningham added that Season 8 would start filming in September. That may be the behind-the-scenes plan, but we have to wait for all the Ts to be crossed until HBO makes it official.

"Game of Thrones" Season 7 has no set premiere date yet, other than some time this summer.

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