With the beginning of the current generation, Sony adopted a new strategy to provide service games, but recently Sony changed its policy and moved away from this trend, and the result was the cancellation of a number of projects that studios were working on, including The Last of Us games, as well as Twisted Metal and others.
According to journalist Jason Schreier, the Horizon Online game project was not one of the projects affected by Sony’s policy change, and the game is still in production, and we may hear more about it next year.