What happened to Luna after the battle at Hogwarts?

Answer 1

Luna Lovegood went on to marry the magizoologist Rolf Scamander, grandson of the great Newt Scamander (who wrote the book Fantastic Beasts and Where to Find Them, a textbook necessary for all students of Hogwarts School of Witchcraft and Wizardry). They had two children, two twin sons in fact, by the names Lorcan and Lysander.

Luna became a famous wizarding naturalists. She travelled the world for strange creatures and discovered and classified many species that the wizarding world had never faced. She never found the Crumple-Horned Skorkack she was always talking about.

Answer 2

Apparently Luna married Rolf Scamander and became a famous naturalist. She also had twin sons called Lorcan and Lysander.

Answer 3

After the battle of Hogwarts Luna Lovegood will become a wizarding naturalist and marry Rolf Scamander, grandson of Newt Scamander, and have twin boys called Lorcan and Lysander.