The tech is there, the looks too, it's only a matter of how many expansions the devs are willing to churn out, and, more importantly, how open they are towards the modding community.
Their roadmap seems fine, if not a little thin, and the inclusion of the mod kit in May is great news.
When some restrictions will be lifted and additional sliders will be created (or remove ageing, that is a bummer), I'm sure we'll see more people playing it.