Map illustrating a hypothetical division of Belgium into two Flanders and Wallonia, with the parts of Wallonia unifying with neighbouring countries along linguistic and historical lines, by modern boundaries.
Brussels-Capital Region - undefined
Flanders - independent state of Flanders
German-Speaking Community - unification with Germany
Luxembourg province - unification with the Grand Duchy of Luxembourg

Remainder of Wallonia - independent state of Wallonia
Derived from File:Deutschsprachige Gemeinschaft in Belgium.svg and File:Province de Luxembourg in Belgium.svg
Rob984