[Fish]

Trailer Breakdown

The trailer begins with Link and Zelda exploring a dungeon-looking cave. Although Link's rocking the same look he did in Breath of the Wild, Zelda has changed her wardrobe. Although her Breath of the Wild pants and blouse are still there, she's adopted a cape and hood that's similar to the one Link wears in his Hylian Armour Set. She's also cut her hair, adopting a haircut that's a lot closer to the one Link has.

What's far more noticeable is the music that's playing. The use of synth creates a much spookier atmosphere in comparison to Breath of the Wild's soft strings. The sound, although slightly different, has been used for a Legend of Zelda game before: Twilight Princess. The comparisons to Twilight Princess continue throughout the trailer, as Link and Zelda delve deeper into the dungeon.

The duo encounters a dark energy that seems to almost be infecting the area and creatures around it and it's coming from what appears to be the mummified corpse of Calamity Ganon (at the very least, it looks like a male Gerudo). The energy itself is only being channeled through Ganon though. It's actually coming from a glowing arm clutching the mummy's chest. The arm is wrapped in golden jewelry, with designs that closely resemble the twisting symbols of the Twili--a race of individuals who are trapped in the Twilight Realm after their ancestors (powerful sorcerers) arrogantly challenged the gods of Hyrule.

We then see a succession of quickly cutting scenes. The first shows Link's seemingly attempting to channel and utilize the energy that is causing the glowing arm to glow. The next sees the dark energy careening into the ceiling. It's followed by a shot of Link and Zelda reaching for each other before cutting to the opening of a crypt. We then see Zelda's hand grabbed by the glowing arm and (perhaps) a flashback to Calamity Ganon first encountering the shadowy being that belongs to that arm. Link and Zelda's presence then seems to awaken something in the tomb, as the floor begins to crumble and the mummified corpse turns to look at them and open its eyes with vehement hatred. The trailer ends with Hyrule Castle rising from the ground and a shot of glowing blue energy--which again looks a lot like the magic that the Twili (specifically Midna, Zant, and the other powerful leaders) uses.

https://www.gamespot.com/articles/ze.../1100-6467714/