Forza Horizon 5 could be set in Mexico and not in Japan as was previously speculated. Though not official, hints for this have been trickling from game journalists and Xbox aficionados on social media. While Microsoft and Playground Games are still tight-lipped about Horizon 5, all rumors point to an E3 2021 unveil alongside other highly anticipated titles such as Halo Infinite, Bethesda's Starfield, and Age of Empires IV.
https://www.notebookcheck.net/Forza-Horizon-5-could-have-a-Mexican-setting-likely-to-be-unveiled-alongside-Halo-Infinite-Starfield-and-Age-of-Empires-IV-at-E3-2021.536068.0.html