A video showcasing areas of the game that change and evolve as you play.
I travelled across the Red Dead Redemption 2 map throughout the various timelines in which the game is set and recorded areas that showed elements of change. I was surprised to find that there were no areas with names beginning IO that showed any distinct signs of change if you can remember or know any others, please let me know down in the comments :).
The video involves clips used from Red Dead Online, Red Dead Redemption 2 Story Mode (Arthur) and Red Dead Redemption 2 Story Mode (John). I hope you enjoy the video :).