If Napoléon I was to remain french Emperor, what national anthem do you think France would have?
The Marseillaise: Very popular with the french people and official anthem before Napoleon. He seems to have disliked the song personally though.
Chant du depart: Another popular song, offical anthem of the first empire, though a bit akward since the song is about fighting for the republic, not empire.
Veillons au salut de l'Empire: A more pro-imperial song, atleast not one actively advocating for another kind of government.
Or something else?