Next year, the DC Extended Universe will wind the clock back and explore Diana of Themyscira's origin story in Wonder Woman. The tale takes place nearly 100 years ago, near the end of Word War I, but fortunately, Diana isn't the only Amazonian who ages slowly. It's been confirmed that when we jump back to the present day for Justice League, Diana's mother, Queen Hippolyta, will also be back.
According to the Warner Bros 2017 movie press kit (via ComicBook.com), Connie Nielsen is listed as reprising Hippolyta in Justice League. Given the massive scale of this movie and all the other players involved, presumably she'll only cameo or make a minor appearance, but that remains to be seen. Jesse Eisenberg was also confirmed to be reprising Lex Luthor, but we already knew that thanks to Eisenberg's comments earlier this year and storyboards that seemed to depict Lex and Deathstroke talking to one another.
Since Wonder Woman doesn't arrive in theaters until next June, all we've seen so far comes from Connie Nielsen's Hippolyta comes from two trailers, where she's heard warning her daughter to be careful. Diana didn't mention any specifics about her past in Batman v Superman: Dawn of Justice, so we don't even know yet if she went back to Themyscira following World War I to reunite with her mother or if she spent the next century strictly among humanity. However, a photo released earlier today came with information that during the first act of Wonder Woman, Diana will disobey Hippolyta by breaking into the armory on Themyscira and stealing the "god-killer" sword so she can be properly armed to help humanity during the Great War. It's possible that due to those actions, Hippolyta was forced exile Diana and prevent her from ever returning to Themyscira, meaning that Justice League will be the first time they've seen each other in 100 years. This is just speculation, of course, but given how key Hippolya is to the Wonder Woman mythology, her presence is welcome.
Now that Hippolyta's inclusion has been announced, it looks like most of the Justice Leaguers will have at least one member of their supporting cast represented. Batman has Alfred and Commissioner Gordon; Superman has Lois Lane and Martha Kent; Aquaman has Mera and Vulko; and Flash reportedly has Iris West. No one from Cyborg's life has been officially announced yet, though ideally we'll get to see his father, Dr. Silas Stone, the man who was seen in Batman v Superman: Dawn of Justice repairing his son's body with a Mother Box. As for any other people who haven't already been mentioned, Game of Thrones' Ciarán Hinds will play Steppenwolf, while Julian Lewis Jones has been cast in a yet-to-be-revealed role.
Justice League hits theaters on November 17, 2017.