io9 has posted another new interview with Matthew Lewis where he talks about Neville and more! Read the full interview at the previous link or in the press archive.
In part 2, Neville and Luna sort of have a flirtation going on, but it’s not with whom J.K. Rowling has announced Neville ends up with, so what did you think of that?
I liked it. Obviously I thought it was terribly coincidental that Harry and co managed to end up with people that met in high school, that doesn’t happen often. So I thought maybe [Neville] and Luna could have a summer fling, perhaps, and then he could go on to marry Hannah Abbott. It suited them. They were both outcasts when they were younger, but they had so much to offer that people couldn’t see at face value, and they both came good in the end and really stood up to the plate and they are both really endearing, inspiring characters, both of them. Both come from very humble beginnings, people think they will never amount to anything, and yet they both do, and I think that’s nice. They are suited for each other. But Luna is probably a lot scarier than Voldemort. Girls in general are scarier than Voldemort. It might have been the next challenge for Neville.