Yes, The Volturi Will Be Involved In The Twilight Sequel
Additionally, Meyer talked a little bit about the main villains of the original Twilight series, the Volturi. As you know, the Volturi is a largely powerful coven of vampires that enforce the law, but can have a pretty lethal way of going about it. Bella and Edward got on their bad side in Breaking Dawn when they were under the impression Renesmee was an immortal child (a kid who is turned into a vampire), when Bella did in fact give birth to her.