I think that it's great that Tom would love to come back as Draco, as I'd love to see him. I've been half and half on this topic - while I do think the story ended well where it stopped. Though on the other hand, since Tom Felton shows interest of returning as Draco, while Dan does not, there could always be a branching of with Draco's character/family. It would be great to see it from that point of view, and that way, everyone is happy