I am not suggesting colonialism/imperialism like we did Eastward, but covertly retaking what was once ours through demographic majority and building up areas which East Germans have neglected. Of course I am not suggesting war or force of any sorts. It must all be done peacefully.
Hungary (once Moravia), like East Germany (once land of Polabians and Sorbs), was ancient Slavic land and it would be great for it to also slowly return to our hands. Hungarians and East Germans are genetically same as Slavs anyway, which just goes to show who they are.