Who gets on the train with Albus Potter?

Answer 1

Albus Potter is the next generation and so the students who get on the train with him are mainly unknown. We only know the people who get on the train from the last chapter of Harry Potter and the Deathly Hallows "19 Years Later" and also from interviews with JK when she reveals more of the family tree. We can assume that he gets on the train with his older brother James Sirius Potter and his cousin Rose Weasly (Hermione and Ron's daughter). Bill and Fleur's daughter Victorie Weasly is also mentioned as Teddy (Lupin and Tonks' son) was "saying goodbye to her". JK also mentions Draco Malfoy's son Scorpius Malfoy getting on the train as well.

In a later interview, after the books were published, Jo mentions more of the Weasly family tree but we cannot be sure who is the same age and would be likey to go to Hogwarts and be on the train with Albus. She mentions:

Bill and Fleur have three children Victorie, Domonique and Louis

Percy and some lady who I can't remember the name of have two children called Molly and Lucy

George and Angelina have two children called Fred and Roxanne.

All of these children could possibly be on the train to Hogwarts with Albus.