Harry Potter is one of the most adored stories in human history, so there has never been a shortage of fan theories about the wizarding world. J.K. Rowling's magical universe continues to expand from Newt Scamander's perspective with the Fantastic Beasts series. The trailer for the Fantastic Beasts sequel dropped in March 2018, and since then, there have been a bevy of Fantastic Beasts: The Crimes of Grindelwald fan theories apparating right onto fans' screens.
Most of these (varyingly) believable theories about Fantastic Beasts 2 connect the prequel series to the story of the Boy Who Lived proper, as there are a ton of Harry Potter references in Fantastic Beasts and Where to Find Them. However, not all of this speculation relates to Mr. Potter or his classmates.
Given the historical significance of the era in which these films take place, it's no surprise some The Crimes of Grindelwald predictions are based in real-world, muggle history. Most fans, however, desperately want to uncover the connections between these disparate wizard eras, so prepare to read a lot about Voldemort and other elements thus far exclusive to the original series.
Claudia Kim's Character Might Be Nagini
There are a lot of interesting notes about Claudia Kim's mysterious character in The Crimes of Grindelwald, specifically the fact her character remains unnamed. In the trailer, we get our first good look at Scamander's traveling Circus Arcanus, which we know (thanks to a poster in the first movie) includes a "Snake Girl."
The new image, however, depicts a snake with a woman's head, captioned "Maledictus." While some might believe Maledictus is a name, that most certainly is not the case; as Pottermore makes clear, Kim is a Maledictus, "the carrier of a blood curse that destines her ultimately to transform into a beast."
It's not so much a leap, then, but a baby step to conclude Kim's character is going to eventually become a snake. Why would they refrain from providing the name of a woman who we can reasonably assume will become a snake? Because it may very well be an imminently recognizable name, like Nagini.
Scamander Was Ordered To New York In Search Of An Obscurial By Dumbledore
There is a theory that Dumbledore's sister Ariana is an Obscurial. Redditor/u/Obversa's uses this as a jumping point for their own theory. This Redditor believes we'll learn more about the relationship between Dumbledore and Newt Scamander, specifically that the latter is working for the former in search of answers about Obscurials in order to ultimately help Ariana.
People Could Apparate Into Hogwarts Until Dumbledore Implemented A Magical Block Of Apparition Onto The Grounds
Much has been made of the apparent apparition of wizards onto the Hogwarts grounds in the trailer for The Crimes of Grindelwald. While many believe this to be a plot hole or oversight, Redditor /u/murse_joe has an alternative theory:
"We see from Dumbledore himself that [apparating onto the grounds is] not actually impossible, he manages it. He may be just that powerful, but it’s not stated to be difficult; it’s stated to be impossible. I think Dumbledore is the one that set up, or at least strengthened, whatever prevents apparating. He may have set up up post-Grindelwald or at least post-Voldemort. Before that, people could.
Hermione says that people used to arrive different ways, one of which was apparition which often went wrong. I don’t think this was strictly the barrier, more that it was untested and untrained kids with parents, side by side is stated to be difficult too. Having students arrive by train is a side effect of the barrier, not an intrinsic property of the grounds."
We Will Find Out More On Nagini's Backstory
A lot of people believe The Crimes of Grindelwald will reveal Claudia Kim is none other than Nagini, but even if that doesn't turn out to be the case, fans are convinced we'll at least learn more about Voldemort's living horcrux.
We know there's a "Snake Girl" in Scamander's Circus Arcanus, and we know the first movie takes place in 1926 while the last will take place in 1945, the year Voldemort left Hogwarts. This has led to the conclusion the entire series doubles as a Voldemort origin story. If Voldemort's presence is to be felt in this series, there will almost certainly be discussion of his beloved pet, Nagini. If such a discussion is to take place, why not use the first film to introduce the Snake Girl?