Different Game Modes for TS4

I'm currently watching yet another apocalypse movie (we all love them) and had a random idea: What if Sims 4 had different game modes? Like you could log onto it and choose "Apocalypse Mode" or "Zombie Mode" or maybe even "Historical Mode" and then your new Save would be in those themes instead of just the normal sims game. I know players have made different mods in the past to sort of make the game seem like it's post apocalypse, but having the option to choose these different modes would just be incredible! This way, you wouldn't have to have mods to change all of the city maps, buildings, and to delete all of the "normal" sims etc, it'd just be that way in the particular mode you chose. This isn't even a thing, yet even the idea of it has me excited! lol. I think EA could profit immensely off of this as well (you know that's a must-have, of course ;) This would be another way to keep TS4 going for another 10+ years, another way to build onto it.