A romance pack coming?

I am not 100% sure what a romance pack would or could do, but if it does come out, I hope it isn't just a new (slow) dance and new romantic interactions and 5 new woohoo locations, but also a new system similar to the turn on and turn offs in Sims 2.
I mean, something that would make some sims more attractive than others.
Hope that makes sense.
Perhaps that would affect friendships too, to a degree...