HBO has put an end to months of speculation about a possible Game of Thrones spinoff, announcing that four different writers have signed development deals with the network.

Variety reports that there’s no set timeline for any of these making it to the screen, quoting an HBO spokesperson who says, “We’ll take as much or as little time as the writers need and, as with all our development, we will evaluate what we have when the scripts are in.”

Scripts will be presented by Max Borenstein (Godzilla, Kong: Skull Island), Brian Helgeland (42, Legend), Carly Wray (Mad Men, The Leftovers), and Jane Goldman (Kingsman: The Golden Circle, Miss Peregrine's Home for Peculiar Children).

Wray and Goldman will work with A Song of Ice and Fire author George R.R. Martin to develop their projects, which probably sounds like bad news if you’re still waiting impatiently for the sixth book of that series.

Game of Thrones executive producers Dan Weiss and David Benioff are attached to the project in some way, but not as writers or show runners. They initially said they had no plans to be involved in any spinoff series.

Last summer, HBO confirmed that Game of Thrones would end in 2018 and hinted that a spinoff series had not been ruled out. It’s not clear which, if any, of the potential spinoffs will be based on Martin’s other works, some of which take place in the Game of Thrones universe hundreds of years before the events of the current series.

The seventh season of Game of Thrones premieres on HBO on July 16th.