In a historic moment for DC, the Justice League Trinity of Superman, Wonder Woman and Batman are following a fourth hero into battle as their leader. Both in-world and to fans, the Trinity are DC’s most iconic heroes, and the ones who take charge when all seems lost. However, as DC’s epic Absolute Power event rumbles on, Superman, Batman and Wonder Woman have all stepped back, allowing a different hero to lead them and the rest of DC’s heroic superhumans.
https://screenrant.com/nightwing-leads-batman-superman-wonder-woman-absolute-power/