The story involves the Justice League facing a massive threat from Apokolips. Darkseid and his forces bring chaos and destruction. The heroes have to fight against overwhelming odds, with many of them facing personal challenges and sacrifices along the way.
Some of the main characters are Superman, Batman, Wonder Woman, and Darkseid. There are also characters from the Justice League Dark like John Constantine.
Zatanna also plays a significant role. Her powerful magic skills are essential for combating the dark forces of Apokolips. She can perform spells that can turn the tide of battle, whether it's for defense or offense.
One interesting plot twist could be a character who was thought to be a villain actually turns out to be a key ally in the fight against Apokolips. Maybe they were under some sort of mind control before.
The trailer story of Shadow of War could be about the power struggle in the game's universe. It may feature the different factions vying for control. For example, we might see the hero trying to unite various groups against a common enemy, which could be a powerful and evil warlord. There could also be elements of betrayal and redemption as the story unfolds within the trailer.
In most cases, it is legal. Fanfiction is a form of creative expression by fans. As long as it doesn't violate any copyright laws in a major way, like using the exact same footage from the trailer without permission in a way that undermines the original work's marketability. But if it's on a legitimate platform that respects intellectual property, you should be okay.
The God of War Ragnarok trailer shows Kratos and Atreus facing new challenges. It seems they are up against powerful foes as they continue their journey in the Norse world. There are epic battles and a sense of impending doom as Ragnarok approaches.
A third theme could be loyalty. There may be scenes in the trailer that show characters being loyal to each other or having their loyalty tested in the face of the war's challenges.
In fanfiction, some Avengers might be shocked. For example, Thor could be angry seeing Thanos' looming threat more clearly in the trailer. He might vow to stop him immediately.