I would like to see Dancer added to Showtime. Already a child sim can attend after-class ballet lessons and learn a couple moves to show off. But it ends there; I'd like to see this as another hidden ability for a future Dancer job.
Of course, the question arises: What style of dance whould a Dancer exhibit. Personally, I'd like to see ballet since, as I've mentioned, a kid can already practice that. However, maybe the developers could give the potential Dancer a choice of dance style, eg, ballet, break-dance, modern interpretive, as examples.