Even though it’s not even announced yet, a journalist has stated that we could get it ahead of Forza Motosport, which was revealed recently. Probably an early date like 2021.
In The Xbox Empire podcast, Jeff Grubb from GameBeat said that he estimates a new Forza Horizon game first even though it’s not even confirmed that the game is in development.
“We saw Forza Motorsport get teased a few months ago [but] I think we might get the next Forza Horizon game first and I think that might be coming this coming year,” Grubb stated. “They’re in a weird situation where for some reason Playground says it does seem like they may be ready to go first. I think I know the setting, but I’m going to let them announce it.” He added.
That’s all we know about Forza Horizon 5, only this claim which hasn’t been confirmed, and no official statement from Playground Games.