I just want to update this by saying that since the update, it wasn't as I feared, that we would end up with almost no invites. I am still getting invites, and in fact they are more varied now. (and they are ones not added by mods) I have gotten some invites I have never seen before, and never knew existed, like invites to Afterlife Anonymous, the Full Moon Revelry, Mentorship hangouts, (I had mentees drop by before for skill building at my sims house, but never a call to invite my sim out to a different lot until the update, then i got it twice, once to a library, and once to a bar) and so on, i also got a stayover request. So either i had a streak of good luck, or they did do something that made some of the events that were not triggering before show up again. I did also get some party invites, but as mentioned, i do use a mod to tweak NPC parties, so...