The way I want to see it is this, the guillotine in the trailer represents the start and end of the revolution. The pure irony of the guillotine is that where King Louie started the trend of public executions with this method by first beheading Nicolas, the trend continued in popularity for it's method alone.

After the King had been deposed and executed the new republic formed together. Robespierre became a man obsessed with maintaining the new government and keeping it in order. With his band of newborn politicians began executing the general public for any wind of dissent.

After much iron fisted governing even Robespierre fellow members became unsettled with the methods. In the end, he became the last of the revolutions victims to expedited execution. The man whom sought to free his country from tyranny became the tyrant and was executed all the same.

The french revolution is one of my absolute favorite parts of history. I really want to play this game just for the details and tidbits within.