Even though the final season of Game of Thrones isn鈥檛 set to air until 2019, production is already underway, and theories about how, exactly, the epic series will end are ramping up. While details are being kept quiet, a new interview has revealed that there will be some pretty major losses 鈥 and you might want to start stocking up on tissues.

Francesca Orsi, HBO鈥檚 SVP of drama, said that witnessing the cast read the scripts for the final episodes was something she鈥檒l never forget. 鈥淚t was a really powerful moment in our lives and our careers,鈥 she said during a panel at the INTV Conference, according to Variety.

Fans of GoT already know not to get too attached, as the show does not hesitate to kill off beloved characters, and Orsi confirms that more deaths will happen in the final season. 鈥淣one of the cast had received the scripts prior, and one by one, they started falling down to their deaths.鈥

Orsi also said that the table read of the final six scripts brought the cast to their feet as they broke out in applause. 鈥淚t was amazing,鈥 she said. 鈥淏y the very end, everyone looked down and looked up and tears were in their eyes.鈥

Maisie Williams, who plays Arya Stark on GoT, recently opened up about her own emotional experience reading the final script. 鈥淚t鈥檚 just surreal, to be honest,鈥 she told Jimmy Kimmel. 鈥淓veryone鈥檚 waiting for this moment, and then you read it and it鈥檚 just like, it鈥檚 incredible.鈥 Something tells us that鈥檚 the only clue we鈥檙e going to get until the final season airs in 2019.

Are you already emotionally preparing for the end of Game of Thrones? Let us know @BritandCo!

(Photos via Helen Sloan/Getty courtesy of HBO + Matt Cardie/Getty)