A new “lost” TV series that was produced by screenwriters guilds is in the works, sources close to the project tell The Hollywood Reporter.
The new series, which is currently in development, will be a spinoff of the critically acclaimed HBO series “Game of Thrones,” sources say.
The project is in its early stages, but a casting call has been sent out to potential cast members.
“We are thrilled to be working with the screenwriters Guild of America, which has a proven track record of producing and bringing television to television audiences,” said J.K. Simmons, President and CEO of screenwriters GWA.
“Our partnership with HBO and the Screenwriters Guild is a perfect fit for the project.”
The series, about a boy who travels to Westeros to save his beloved sister, will star Sophie Turner and Nikolaj Coster-Waldau.
It is expected to debut on HBO sometime in 2019.
In the meantime, the HBO series is still in development and the new series is being developed at a time when the cable network is looking to adapt more popular series.
The network recently made a big splash with “Game Of Thrones” by scooping up a third season.