Epilogue. After the war ended, McGonagall was fully instated as the Headmistress of Hogwarts and was awarded the Order of Merlin, First Class by new Minister for Magic Kingsley Shacklebolt.
Thankfully, Hogwarts' Board of Governors appointed McGonagall as Headmistress after Snape's death, a title which she still holds in the series' current timeline.
Loyalty. Professor Marazion succeeded Minerva McGonagall in the post of Head of Hogwarts School of Witchcraft and Wizardry. This individual became Headmaster or Headmistress some time between 2008 and 2017 after Minerva McGonagall went into retirement as she was "getting on a bit".
The once shy and awkward Neville Longbottom showed his true bravery during the battle of Hogwarts and eventually became the head of Gryffindor House while also teaching new students Herbology, his favorite subject.
In Harry Potter and the Deathly Hallows, Slughorn briefly appears with other teachers assembling to fight Death Eaters. As Snape is now Headmaster, Slughorn has again assumed the post of Head of Slytherin.
Who is the true heir of Slytherin in Harry Potter?
The true heir of Slytherin is revealed to be Tom Riddle, also known as Lord Voldemort, who had a direct bloodline connection to Slytherin through the Gaunt family.
Rowling revealed more information about Neville when she stated that he married Hannah Abbott, a Hufflepuff classmate, who became the landlady of the Leaky Cauldron. The couple live over the pub, a fact that Rowling thought people would find "particularly cool".
Epilogue. After the war ended, McGonagall was fully instated as the Headmistress of Hogwarts and was awarded the Order of Merlin, First Class by new Minister for Magic Kingsley Shacklebolt.
She was sorted into Slytherin House at Hogwarts School of Witchcraft and Wizardry and hated her time at the school due to never being given any positions of power.
Does Luna and Neville get married? No, they do not. Neville married Hannah Abbott, and Luna married Rolf Scamander, the grandson of Newt/Newton Scamander.
Marriage. Through all her early years at Hogwarts, Minerva McGonagall remained on terms of friendship with her old boss at the Ministry, Elphinstone Urquart. He came to visit her while on holiday to Scotland, and to her great surprise and embarrassment, proposed marriage in Madam Puddifoot's teashop.
Her middle name, Luna, is a tribute to Luna Lovegood, a good friend of her mother, during their time at Hogwarts. This naming choice reflects the deep respect and affection Harry and Ginny have for these two individuals.
Previously, she was suspicious of Riddle in spite of the fact that she wasn't his teacher and thus shared her fears with Dumbledore in private. Even so, McGonagall chose to not join the Order of the Phoenix, which was seen as a renegade outfit by the Ministry at the time.
He actually asked the Sorting Hat to place him in Hufflepuff, as he was intimidated by Gryffindor's reputation for bravery, but the Sorting Hat didn't agree. They debated it for so long, that he was close to being what is known as a Hatstall, which is a term for any student whose Sorting takes longer than five minutes.
In Harry Potter and the Deathly Hallows Part 2, Neville is actually the person who destroys Voldemort's last Horcrux in Nagini, rendering him mortal, meaning that he and Harry truly delivered the final blows to Voldemort.
Hagrid was the surname of a wizarding family. Mr Hagrid married the Giantess Fridwulfa, and she bore him a half-giant son named Rubeus Hagrid. It is unknown if Rubeus Hagrid ever had children, but it is known that he did not marry.
So why did Harry choose Ginny over Hermione? Because Harry and Hermione were never a thing. And because Harry developed feelings for Ginny. He didn't “choose Ginny over Hermione,” because he was never interested in Hermione.
Luna would also eventually meet Rolf Scamander, grandson of the famous Newt Scamander and his wife Porpentina. Rolf would become her husband and the union would produce twins, Lorcan and Lysander.
She was killed in 1943 by the Serpent of Slytherin, which had been released by Tom Riddle. After the incident, she became a ghost who haunted the second-floor girls' bathroom (and occasionally other bathroom facilities) at Hogwarts.
It follows Albus Severus Potter, son of Harry Potter, who is now Head of the Department of Magical Law Enforcement at the Ministry of Magic. When Albus arrives at Hogwarts, he gets sorted into Slytherin, and fails to live up to his father's legacy, making him resentful of his father.
