Who do tu think should play the future characters at the end of deathly hallows part 2?

tu know what? I think I read somewhere Emma's interview, and she dicho there, they were going to have false wrinkles and makeup to make them look older. So I'm guessing they will portray their characters trough the whole movie. Besides, I checked imdb.com and there was nothing about an older Harry, Hermione nor Ron...
I hope my guesses are right because I really want to see them in the end...