Wow. I am soooo glad I haven't touched my favorite saved game. I am now playing in an alternate save game I created especially for the season and although I am playing in Spring I see a lot of blue joggers and strollers really. Noone has died and I have kept an eye on my Sims' friend lists and no ghosts have popped up yet. I guess I don't have to wonder when father winter finally comes around.
I don't mind deaths or unexpected deaths even but not for the Sims I am not playing at a given time.