The end of Fantastic Beasts: The Crimes of Grindelwald leaves a big rift between Queenie Goldstein (Alison Sudol) and Jacob Kowalski (Dan Fogler), but J.K. Rowling already hinted at a happier end for the two through an American Quidditch chaser. In Fantastic Beasts 2, Queenie joins Gellert Grindelwald (Johnny Depp/Mads Mikkelsen), led by the belief that in a world where Wizardkind doesn't have to hide anymore, she would be free to love Jacob. Fantastic Beasts: The Secrets of Dumbledore promises to further explore Queenie and Jacob's relationship and Queenie's role at Grindelwald's side.
Fantastic Beasts 2 completely changed Queenie, as she turns from a deeply empathetic character (naturally, as she is a Legilimens) into an alienated and frustrated follower of Grindelwald's. But there is a reason behind her dark turn: Rappaport’s Law, which was enacted in 1790 in the U.S. and intended to create complete segregation between the No-Maj and wizarding communities, with the goal to preserve the International Statute of Secrecy. Queenie is exceptionally upset over this law, and over Jacob's fear of it (and consequent refusal to marry her). However, even though heartbroken after Jacob refuses to walk into Grindelwald's fire with her, Queenie still clings to her hope of a future with Jacob as her husband — and the Harry Potter canon confirms this future.
Related: Fantastic Beasts 3 Theory: Dumbledore's Mother Is Secretly Alive
J.K. Rowling's Pottermore shared a Daily Prophet article written by Ginny Potter (Bonnie Wright) on a Quidditch game in 2014. The article mentions Quentin Kowalski, a US chaser who, following the 2014 game, was under investigation for the «sudden collapse of Kquewanda Bailey, the Jamaican Keeper»
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