There were five prequel spinoff ideas in the works for "Game of Thrones." One prequel was just officially announced for a pilot order. Another is officially "shelved." Three others are still in development.

That's the scoop from author George R.R. Martin, whose works are being adapted for these spinoffs. He also assured readers of his "A Song of Ice and Fire" series that work on the sixth novel "The Winds of Winter," is still his "top priority." (Pause for your own eyeroll, if needed.)

Martin prefers to call the spinoffs "successor shows" to "Game of Thrones."

The one that HBO ordered to pilot, from Jane Goldman, is set 10 thousand years before "Game of Thrones." In his latest blog post, GRRM revealed his choice for a series title:

"This one really puts the PRE in prequel, since it is set not ninety years before GAME OF THRONES (like Dunk & Egg), or a few hundred years, but rather ten thousand years (well, assuming the oral histories of the First Men are accurate, but there are maesters at the Citadel who insist it has only been half that long).

We're very early in the process, of course, with the pilot order just in, so we don't have a director yet, or a cast, or a location, or even a title. (My vote would be THE LONG NIGHT, which says it all, but I'd be surprised if that's where we end up. More likely HBO will want to work the phrase "game of thrones" in there somewhere. We'll know sooner or later).

Yes. "Game of Thrones: The Long Night," or some such. "The Long Night: Game of Thrones Continues." Others are suggesting "Age of Heroes," which would be OK, but "The Long Night" sounds less like a CW crossover.

Here's GRRM's update on the other GoT spinoffs in the works:

"As for the other successor shows... if you have been following along, you know that we started with four, and eventually went to five. One of those has been shelved, I am given to understand, and of course Jane's pilot is now moving to film. But that does not mean the others are dead. Three more GAME OF THRONES prequels, set in different periods and featuring different characters and storylines, remain in active development. Everything I am told indicates that we could film at least one more pilot, and maybe more than one, in the years to come. We do have an entire world and tens of thousands of years of history to play with, after all. But this is television, so nothing is certain."

So three more remain in active development and he's confident about at least one more pilot. Sounds good.

Of course, we still have the final season of "Game of Thrones" to look forward to. Season 8 just held its wrap party, although filming doesn't seem to be completely finished. HBO has yet to share a trailer or official photos or the release date, beyond telling us it will premiere in 2019.

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