The Game of Thrones writers included Maggy the Frog (Jodhi May)'s prophecies for Cersei Lannister (Lena Headey) in the show; however, there were some changes made from the books. There's one prophecy, in particular, that is left out of the show version, which really should've been kept in. It's known as the valonqar prophecy.
Valonqar means little brother in High Valyrian. Cersei herself thinks the prophecy refers to Tyrion (Peter Dinklage), and it plays a role in how she feels about her younger brother. However, she forgets that although they are twins, she is a few minutes older than Jaime (Nikolaj Coster-Waldau). There's also the possibility that it might be another case like the prophecy of the "prince who was promised," where the word valonqar could be gender-neutral.
Although the valonqar prophecy was left out of the show's version of events, some book readers might have still expected it to play out on Game of Thrones. Therefore, some fans might have been disappointed to see Daenerys Targaryen (Emilia Clarke) responsible for Cersei's demise and not one of her brothers. However, could Daenerys fit the prophecy? She was a younger sibling to both Rhaegar (Wilf Scolding) and Viserys (Harry Lloyd), so maybe. Or did it not come true at all on the show, and that's why it was left out? Let's take a closer look at the valonqar prophecy. Maggy tells Cersei in the books that the king will have 16 children and she will have 3. Her children will have gold crowns and gold shrouds, showing that they will pass on before their mother. Then, she mentions the valonqar.
According to Maggy, after Cersei's "tears have drowned [her], the valonqar shall wrap his hands about [her] pale white throat and choke the life from [her]." Though the actual part mentioning the valonqar is short, the rest of the prophecy did come true on Game of Thrones. All of Cersei's children met their fates before her. However, no valonqar appeared. This is perhaps another missed opportunity in the final season of the show. Although, it might not be. Possibly Daenerys could fit the prophecy. All that it really requires is for Cersei to expire from choking. Perhaps on ash from Dragonfire? Then again, supposedly, the valonqar would wrap their hands around Cersei's throat, and as far as we know, Daenerys didn't do that.
So did Game of Thronesmiss another opportunity in season 8? Or did the prophecy come true in a different way? After all, predictions such as this one might not necessarily be literal. It could just mean that the valonqar causes Cersei's demise through choking. The hands might not be actual hands but more metaphorical. So can Daenerys fit the prophecy? Possibly. She definitely seems to be the younger and more beautiful queen responsible for destroying Cersei. However, would it be too much for her to be the valonqar too? It depends.
Daenerys being the valonqar in the show would make some sense. Given how the writers seemed to turn on her so quickly at the end. However, is that George R.R. Martin's vision? Or did the show add that in to vilify Daenerys further and surprisingly victimize Cersei? It's hard to tell with the Game of Thrones writers. They do like to shock their audience, which is partially to blame for the show's downfall. Such a thing might happen in the A Song of Ice and Fire books, but many fans are probably hoping it won't. After all, Daenerys being responsible for the demise of Cersei wouldn't be as satisfying as if it was Jaime or even Tyrion. Game of Thrones fans can only hope that the prophecy's events will reach a more satisfying conclusion in the books. It's definitely a possibility that it will.
Of course, not every Game of Thrones fan will agree that Daenerys could fit the valonqar prophecy. After all, it does paint a vivid picture of Cersei's fate. And Daenerys, especially in the books, doesn't seem to fit that picture. Even if she gets darker, it's hard to imagine her wanting to choke anyone with her own hands. Even if the hands part isn't meant literally, it's a hard mental image to let go of. And when Cersei herself has two brothers, one of them would undoubtedly be more of a satisfying answer for fans.
Yet Game of Thronesseason 8 was extremely unsatisfying. So, therefore, Daenerys being the valonqar in the show would make a twisted kind of sense. It would be the ultimate shock since no one would expect it. And everyone knows how the Game of Thrones writers like their shocks. It would also further fit the mad queen stereotype that Daenerys was given in the end. Only a true mad queen would need to get rid of any rivals in such a violent way. And Cersei's demise was certainly intense, that's for sure.