Steve Trevor died at the end of Wonder Woman after sacrificing himself to ensure that a plane full of deadly gas couldn’t harm anyone on the ground. Is this Steve Trevor the same Steve Trevor that we saw in Wonder Woman who was transported to 1984 because of something like time travel, a descendant of Steve Trevor’s who is also named Steve Trevor (and looks exactly like Pine), a clone, or something else entirely? (It’s a comic book movie, so anything is possible.)
Centuries ago, an argument between Aphrodite and Ares led to the creation of the Amazons, who have been guided and protected by the goddesses ever since. Ares' recent schemes to destroy the Amazons and his fellow gods led to an Amazon champion being chosen. This champion was the Princess Diana, daughter of Queen Hippolyta, whom Hermes escorted to Man's World. There she was called Wonder Woman. Hephaestus forged Wonder Woman's golden Lasso of Truth from the girdle of the earth-goddess Gaea, and her silver bracelets which he formed from the splintered Aegis of Zeus. While the Olympian gods were her patrons, other gods were her foes. Ares and his progeny, Deimos and Phobos, quickly set about challenging the princess in her quest. Phobos created the creature Decay from the "heart of the Gorgon," which Diana quickly dispatched. Meanwhile, Deimos recruited humans on opposing sides, inciting them to war.
Ares appears as a major antagonist in the live action Wonder Woman film. In Queen Hippolyta's story about Ares which she reads to Diana, Ares was condemned by the other Olympian Gods for his warmongering which led to him killing the Gods where the images show him killing Apollo, Artemis, Athena, Hades, Hestia, and Poseidon until Zeus drove him off of Mount Olympus with his thunderbolts. In his dying breath, Zeus created Themyscira for the Amazons and left them the "Godkiller" required to kill Ares should he rise again. This happens during World War I where Wonder Woman managed to slay Ares.
Voiced by Michelle Monaghan. Based on the story ''Justice League Origins'', where Darkseid invades earth, only to fail due to its heroes. Wonder Woman is first seen with Steve Trevor, where she is supposed to meet the president of the United States, but he isn't there. After the Mother Boxes opens up boomtubes, she defeats multiple soldiers of Apokolips, but flies to Air Force One to protect the president. After battling some opponents, she meets Superman, and from there they proceed to meet other heroes. The battle and Superman gets knocked out and is about to be made a soldier by Desaad but Batman manages to save him in time. Wonder Woman then proceeds to battle Darkseid along with the rest of the Justice League, and succsessfully sends him back throug a boomtube.
Diana is depicted as a masterful athlete, acrobat, fighter and strategist, trained and experienced in many ancient and modern forms of armed and unarmed combat, including exclusive Amazonian martial arts. With her godlike abilities of incalculable superhuman strength, nigh-invulnerability, speed, flight, healing factor and semi-immortality, Diana’s fighting prowess is enhanced. In some versions, her mother trained her, as Wonder Girl, for a future career as Wonder Woman. From the beginning, she is portrayed as highly skilled in using her Amazon bracelets to stop bullets and in wielding her golden lasso. Batman once called her the "best melee fighter in the world". The modern version of the character is known to use lethal force when she deems it necessary. In the New 52 continuity, her superior combat skills are the result of her Amazon training, as well as receiving further training from Ares, the God of War, himself, since as early as her childhood. The Golden Age Wonder Woman also had knowledge in psychology, as did her Amazon sisters.
Impressed by this unknown woman's self-sacrifice, the Amazons entombed her with honors and clothed her in armor displaying the American flag pattern on her uniform, which they assumed were her heraldic colors. Trevor's legacy was also the primary reason why Ares arranged for Steve Trevor to bomb the island, as he could not resist the irony of the heroine's son unwittingly killing her admirers.
In order to prove her devotion to her people, the Amazons issued a challenge to Diana, one she would have to meet in two days. In the meantime, the Justice League had tracked the insectoid queen down to a remote mountain. The League journeyed deep into the mountain and encountered the queen. Diana condemned her for the lives she has taken, but the insectoid queen replied that it was Diana’s actions, namely her throwing of the First Born into the depths of the Earth, that awoke the insectoids from their slumber.
Issue #600 introduced Wonder Woman to an alternate timeline created by the Gods in which Themyscira had been destroyed and the Amazons scattered around the world. In this timeline, Diana is an orphan raised in New York who is learning to cope with her powers. The entire world has forgotten Wonder Woman's existence and the main story of this run was of Diana trying to restore reality even though she does not properly remember it herself. Diana has no memories of her prior adventures as Wonder Woman, recollecting her memories in bits and pieces and receiving different abilities and resources (such as the power of flight and her lasso) during the progression of her adventure. A trio of Death Goddesses called The Morrigan acted as Wonder Woman's main enemies. Diana ultimately defeats the evil goddesses and returns everything back to normal.
Wonder Woman managed to stabilize the plane when it was hit by the shockwave. Hermes and Artemis also arrived at Olympus, where Artemis discovered that Apollo had died in the attack. Among the ruins of the tower, the First Born claimed the throne of Olympus. Wonder Woman confronted the First Born, but he gained the upper hand. However, Hera arrived at Olympus, having regained her Olympian powers, revealing that Apollo had restored them before dying. Hera teleported Wonder Woman and her allies to Paradise Island. There, Wonder Woman found Zola, safe. Hera had also restored the Amazons back to life. Wonder Woman chose to lead them to battle as the new God of War.
Zeus has made a woman called Zola pregnant. Hera, due to this, is furious. She sets out to kill Zola, but Hermes finds her first, only to find out that Zola does not want to come with Hermes. Zola opens the door, and an arrow is shot at her direction; Hermes pushes her away in time, and gives her a key, as assassins sent by Hera and it teleports to Wonder Woman’s apartment, because Hermes enlisted Wonder Woman to protect Zola. Zola gives Wonder Woman the key, and it teleports both Wonder Woman and Zola back to Zola’s house. After Zola finds out that she is pregnant with Zeus, it gets revealed that one of Zeus’ children is going to take his place, by Zeus’ own will. Wonder Woman takes Zola, along with Hermes, to Themiscyra where Diana explains to her Mother, Queen Hippolyta, why she took with herself Zola and Hermes to Themiscyra. Alongside all of this, Hippolyta tells Diana about her true origins; that her real father is Zeus. Diana’s reaction to this isn’t very well, so she decides to abandon Themiscyra. Hera is aware of the fact that Wonder Woman is Zeus’ daughter, and she arrives to Themiscyra, furiously. Wonder Woman realized she did a mistake by leaving her home, so she went back to Themiscyra where she sees that everyone has been turned into snakes by Hera, except for Hippolyta, she was turned into stone. Apollo arrives in a bar searching for War (Ares), and explains to him that Zeus doesn’t even exist from what he’s sources says. Apollo takes this as his chance to become the king of Olympus and the Gods.