Voldemort's sister ; Amilia Merope Riddle and the mirror of dawn

Tom Marovlo Riddle at just the age of seven, got mad at his older sister and accidentally petrified her, not knowing what it was he hid his petrified sister in his cupboard, telling the orphanage director she ran away without him.
About four years after the accident, a strange man came to visit Tom, telling Tom he was a wizard. Tom only believe the strange man, when he made him look in the cupboard and he's petrified sister was missing.
"You used a rare petrifying spell, Tom. This spell is extremely hard to reverse and your sister might stay in this situation for quite a long time," he said. (it was an even stronger spell than the basilisk and it was soon banned by the minister of magic, who obliviated all memories of it).
Later on, Tom went to school, learning more about magic, every day he tried bringing back hes sister, and understood that only time could. Soon enough Tom became Lord Voldemort and forgot about hes sister, only thinking about hes powers and how to defeat Harry Potter
57 years after (in 1989) she was unpetrified, Dumbledore finally managed to bring her back. she was still a 10 year old and started attending Hogwarts school of witchcraft and wizardry a year later, after her 11th birthday.

What do you think will happen to Hogwarts, having a new riddle in the school? Is Amelia going to follow her brother's footsteps?

(I DO NOT OWN THE CHARACTERS APART FROM AMELIA )