Unsurprisingly, McGonagall was reinstated as Hogwarts Headmistress following Voldemort’s defeat. She had previously held the position in The Chamber of Secrets, when Dumbledore was sacked as a result of Lucius Malfoy’s meddling, and at the end of The Half-Blood Prince, when she briefly took Dumbledore’s office after his death.
Her contributions as Headmistress include hiring former student and Battle of Hogwarts legend Neville Longbottom as Herbology Professor, while she allowed Dumbledore’s notes on The Tales of Beedle the Bard to be officially published.
She remains at Hogwarts for the enrollment of each of Harry and Ginny’s three children, and featured prominently in the events of Harry Potter and the Cursed Child, where Harry’s second son Albus– now a fourth-year Slytherin student and best friend of Scorpius Malfoy– uses a Time-Turner to travel back to the year 1995 in an attempt to save Cedric Diggory from Lord Voldemort.
When the boys fix their mistakes and return to the original timeline, they are greeted by McGonagall, and they reveal to her what they had done. Because you don’t lie to Professor McGonagall. —
QOTD: The object placed at left of you would be your Horcrux, what is it? Its my brother. 😂 @harrypotteredits