Well, Physical Copies of Forza Horizon 3 might become really important. Team Playgrounds announced it on twitter that Forza Horizon 3 is reaching the “End of Life”. Therefore, no more DLC’s will be available for purchase in the Microsoft Store. This doesn’t necessarily mean the game will stop.
“When a game reaches “End of Life”, that means it and its DLC will no longer be available for purchase in the Microsoft Store. However, features like multiplayer and online services will still be accessible for those that own the game.”
Players who already own Forza Horizon 3 will be able to enjoy multiplayer, and many more features of the game. Other than this, if you plan on getting the Forza Horizon in the near future, make sure you get it before September 27, 2020. That is because the game will stop selling across all digital platforms.
Another possibility that I can think of is Xbox Game Pass. We have seen Forza Horizon 3 is continuously available in the Xbox Game Pass. And there are high chances, that Forza Horizon 3 becomes an exclusive on the Game Pass. Right now, Microsoft is doing a lot to fulfill the potential of Xbox Game Pass.