- Ares is not the Main Villain. He did not even want to fight Zeus in the first place. The reveal at the end, when Ares makes his appearance, has Ares taunt Diana about how he is not the cause of the war, and when she doesn't believe him, Ares has her use her Lasso of Truth on him as he tells him a story: The Greek Gods, who at the beginning are shown to have been good, and created the humans were actually the bad guys all along, creating humans in their image just to alleviate their boredom, and then toying when their lives when they grew tired of them. Because they were made in the old Gods image, humanity was just as bad, greedy, and destructive as they were.
- Ares did not care for humans, but neither did he deemed them important enough to destroy. As the humans forgot the old Gods, they warred against each other, increasing Ares' power. The Other Gods, seeing what was happening tries to destroy the humans sending plagues disease and hunger, but that caused them to only fight even harder. Ares soon became the strongest God, and the others rallied against him. Ares did not even fight back that much as he still cared somewhat for them, not that he needed as he was stronger than them together by that point. It took Zeus using nearly all of his power in a final desperate blow to strike him down and banishing him to Earth.
- Ares can't affect what happens in the world, he can't even be seen by the humans. He's just a spectator that's been seeing them through millennia, and his opinion on humans hasn't changed. They're just as evil, destructive, backstabbing, as they had always been. he does not see anything positive about them, but neither can he kill them, nor does he want to. Their very own wars of destruction give him power, and this Great War will perhaps give him back the power he lost in the final confrontation to return once more to Olympus. He entreats Diana to go back to Themyscira, and even vows on his honor to never harm the amazons or attack them as he respects them too much. Then he just leaves
- Dr. Poison is the true Main Villain, and is upgraded as such (she should not laugh). She serves as a foil for Diana; both extraordinary woman, both fighting in war, but in different societies. In the end, she takes the bomber plane to launch her chemical weapons on London to win the war. Steve manages to catch up and enter the bomber, where he fights his way through the soldiers there to try and stop her. After Ares disappears, Diana meets with Chief, Charlie and Sameed, discussing their options and making a plan, Chief can hotwire one of the planes to start, but does not know how to fly it. Sameer mentions his nephew Andre once taught him how to, so he can fly it. Charlie accompanies them to man the gun in the plane, while Diana uses her Lasso to hold herself as she stands in one of the wings (like the
acrobats of before).
- They have to fly, and fight, through the entire screen of fighters accompanying the bomber as they approach. Diana jumps to the bomber, and struggles before opening the door and entering, finding Dr. Poison holding Steve at gunpoint. Both have a conversation, where Diana tries to have her stand down, as she tries to make her see she does not want to do this. Dr. Poison seems to vacillate, before apologizing, breaking some of the poison bombs, and jumping out. Steve has Diana leave before the poison kills her, gifting her his watch and kissing her before she leaves and he crashes the plane into the ocean, dying.
- We have the final scenes where we see the end of the war, the men go back to their lives, and Diana creates her own. Seeing the world change, now living as a Curator/Archeology specialist in the modern world. The picture of her and her friends from back then still in her possession.