Following a similar post-launch cycle as the first Horizon game. The Burning Shores is an expansion to the early 2022 PS5 hit. The expansion will let players take control of Aloy in the City of Stars, LA. Not much of the setting was shown in the trailer, except for a boss battle against the Hollywood sign. The expansion will hit PS5 only, sorry PS4 owners, on April 19th, 2023. More info was revealed in a post on the Guerilla Games blog, along with a handful of in-engine pics, along with the reveal trailer; the link will be below.
https://www.guerrilla-games.com/read/aloy-s-story-continues-in-horizon-forbidden-west-burning-shores