Try Something New With The Sims 5?

I think that the Sims is very much a life simulation game so to have it in the future or medieval as the base game kind of defeats the purpose as well as limits game play. I think those maybe would work as World alternatives, but if the base game was based in the future or medieval times it would limit what packs you could have and how you play.

EDIT: When I commented I had not read any previous comments. I retract my "limit game play" comment because clearing some people are much more imaginative than me. I do think that the option to choose would be cool rather than just having one set style.