Question: Is NPC Autonomy coming to base game?

I hope this doesn't mean that while I'm away playing one family another doesn't arbitrarily decide to get divorced. I'm thinking of my UTTS story here. I don't want Liberty and Matteo or Danielle and Londyn to suddenly call it quits. Those are two relationships I don't want messed with. I was so worried about flirting with anybody and everybody I installed a faithfulness mod to stop anything that night sink these relationships. Now this is s potential new worry. Hopefully it won't change the behavior of sims in played households even when they aren't the active one.