1st team appearance of the Justice League's children from the future
1st appearance of Hunter Prince, son of Wonder Woman and The Darkness
1st appearance of Cruise and Green Lanterns, Jenny and Jason Allen, children of Barry Allen and Jessica Cruz
1st appearance of Cube, son of Cyborg and unnamed mother
1st appearance of Serenity, daughter of Aquaman and Mera
1st appearance of Sovereign, an alternate reality Hippolyta
