Queen Cersei is pregnant with her fourth child with her twin brother, Jaime. But as longtime fans of the series know, Cersei is very unlikely to give birth to another child.
According to a mostly accurate leaked outline of season seven, the latest season of "Game of Thrones" intended to tie off that loose thread as well.
In a Reddit leak from October that has mostly proved accurate, a crucial scene involving Cersei would've solved the issue of the potential fourth child with Jaime. The original poster has since deleted their account, so Redditor maureencreates compiled them.
Here's the synopsis of the scene involving Cersei that never appeared in season seven:
"Cersei awakens in a bed soaked with blood. The general consensus is that she miscarries."
Given the nature of the leak as an outline, it's possible that such a major plot point would've come with more of an explanation.
So what happened? Why didn't this crucial scene show up in season seven? The idea might've been scrapped in favor of another solution further down the road. Or it might've been filmed and saved for the final season of "Game of Thrones" - or something entirely different. It's hard to know.