As a result Prussia was firmly shoved towards the west, back into Germany, strengthening the German character of the state.
The reappearance of the red border does not signify the return of the Holy Roman Empire. Instead a loose German Confederation was put in its place.
The Prince of Orange-Nassau, who had lost his German domains, had returned to the Netherlands where he became first a sovereign Prince and then King, instead of Stadtholder as his father had been. The new Kingdom was enlarged with the former Austrian Netherlands, or Belgium, as a buffer state against France. The King however wasn't restored to his German lands. Instead he was made Grandduke of Luxembourg. The Grandduchy was however a province of the Kingdom of the United Netherlands, while at the same time a Grandduchy of the German Confederation. In a dynastic sense it took the place of the Principality of Orange-Nassau within the dynastic treaties and settlements of the House of Nassau.