The Sims 5 could have a surprising amount to gain by approaching the series like a multiverse rather than a single timeline. Although The Sims is more of a sandbox rather than a story with a set narrative, there are histories and storylines involved with several of the series families. Although the series hasn't made a big deal about these stories in most cases, they're still in the background. With how the games keep evolving, the series' approach to characters may be ready to change as well.