Newt's house scarf is seen when his suitcase is set to Muggle-Worthy mode and again at the end of the movie. He's clearly one proud Hufflepuff if he's wearing it even after he was expelled!
6. The Deathly Hallows
The plot twist that Percival Graves was Grindelwald the whole time was revealed and when we see the Deathly Hallows symbol it all falls into place. When Percival/Grindelwald is trying to convince Credence to help him out, he gives him a necklace with a charm of the Hallows symbol. #Danger
We first met Nifflers when Hagrid taught his Care of Magical Creatures class about them, we then got to hear about them destroying Umbridge's office which was very satisfying, and now they're back! In Fantastic Beasts Newt has a niffler and he's bloody cute.
If the name murtlap rings a bell it's because the creature that escapes from Newt's suitcase also secretes (we guess) an essence that's an important potions ingredient for healing! In Order of the Phoenix, Hermione uses murtlap essence to treat Harry's cuts from Umbridge's awful line writing...
This is another magical creature, but this one is thought to be near-extinction in Harry's age so it's pretty cool they included it! Obvs the Erumpent escapes and yada yada, causes trouble. But you might remember it from But The Deathly Hallows, when the gang are on the run from Voldemort and go to the Lovegood's house. Papa Xenophilius owned a crumple-horned snorkackerumpent horn, that was actually a highly explosive Erumpent horn. It explodes his house in case you don't remember. Awks.
With all the tensions between muggles and wizards in Fantastic Beasts we're not surprised Squibs come up. From Harry Potter we know that Filch is a Squib and it's VERY embarrassing to come from a wizarding family and now have magical powers. Newt originally thinks Credence is a Squib (he's not FYI).
Alas, we don't see any games of Quidditch but it's mentioned when someone asks Newt if he's a seeker, and he replies, "I'm more of a chaser, really." Good old punny Newt.
Did we miss any references? Let us know!