Expansion concept - Time Goes On [plus screenshots]

Yeah, you're right guys - this wouldn't exactly be doable within the current TS4... the only way I could see this possibly working for Sims 4 is if one single neighborhood was released that behaved like this. And even then it would be a mega expansion, too much content for a single expansion. I guess it's just wishful thinking on my part :D perhaps an idea for Sims 5.