Are there any new civilizations introduced in the Definitive Edition?

A. Yes, Age of Empires II: Definitive Edition introduces four new civilizations: Armenians, Bengalis, Bulgarians, Berbers, Bohemians, Cumans, Bulgarians, Burgundians, Burmese, Lithuanians, Cumans, Dravidians, Ethiopians, Georgians, Gurjaras, Hindustanis, Incas, Italians, Khmer, Lithuanians, Magyars, Malay, Malians, Poles, Portuguese, Romans, Sicilians, Slavs, Tatars and Vietnamese, each with its own distinct playstyle and units.