Per Patricia Hernandez in Polygon:

The surprise Nintendo Direct at the end of October ended with another glimpse at Hyrule Warriors: Age of Calamity that shows off how the Breath of the Wild prequel will let you control the powerful Divine Beasts from the open-world Legend of Zelda game. It also noted that the hack-and-slash game has a playable demo that fans can download via the Nintendo Switch eShop now, and it includes the entirety of the first chapter.

I’m happy about this development. I love “Breath of the Wild” and would love to experience more world-building related to it, but I have never played a “Dynasty Warriors”-type game and have no idea if I would like it.