I Wonder Who's Playing McClane's Son In New "Die Hard" Film?

So seeing as "A Good Day To Die Hard" has began filming in Russia, let's play a game of who is going to play John McClane's son in the film. Fox have quite a few names that they're going through. From Shia LaBeouf to Ryan Gosling and Liam Hemsworth to even as old as Paul Walker. They wont let us know who they really want until they choose the actor.
I personally think that Liam Hemsworth would be quite good for the role. We'll see him later in the year in "The Expendables 2", so we can see how good he is in an action film. Who would you like to see play John Jr???