HBO executives revealed to Variety at a recent conference in Israel that the script of the series finale has been completed and that the actors have learned the fate of their characters.
"None of the cast had received the scripts prior, and one by one they started falling down to their deaths," HBO SVP of Drama Francesca Orsi said of the finale table read.
"By the very end, everyone looked down and looked up and tears were in their eyes."
She added that the final six scripts were well received by the actors, claiming that everyone at the table read stood and applauded for 15 to 20 minutes.
Orsi also confirmed that there will indeed be multiple spin-offs, which will expand the Westeros universe beyond George R. R. Martin's source material.
"It feels like corporate malfeasance to not continue it," she said. "That's why it spawned three, four, five spinoffs."
"We're going big."