As an AFOTS, I know exactly what I'm missing here in TS4, but I would pay to have. Something as deep as TS3 'Roaring heights', which was IMO a success in terms of adult content, without being visually inappropriate for x age.
In that hood, you had several bad mariages in an era (1920's to 1940's) where divorce wasn't commonplace as today, which led to deceit, but also the family struggles of a widow, hidden homosexuality for status reasons, and so on...
In TS4, there's not a single adult-themed setup that comes at the top of my head; something I personally miss.
For the visuals, that's a different story. Yes, I'd personally like the cake-girl, or the 'goose' (that damn goose :D ) to make a comeback, but some of the things we'd like to see might very well force them to change their 'T rating' in 2020, as opposed to the 3 previous entries eras.
