Could the next villain be the return of a Big Bad from a previous season that Wallace talked about or a completely new foe for Team Flash to battle, with a returning villain later to come in Season 7?
Last year, Eric Wallace mentioned the Season 6 storylines going into Season 7 make the stories even stronger, being able to look at two separate things: the end of Eva’s story and the beginning of the next villain’s story, which the audience will get straight into once the Mirrorverse arc wraps up.