So, in the 1.14 snapshots, Mojang changed Gossip spreading required to spawn an Iron Golem from 10 to 5. That was significant enough, but I have another idea (keep this though).
For the villages in general, maybe some villagers could run some shops together, like the blacksmith classes could work in the same building, but have two bedrooms to themselves. Or maybe there could b two seperate houses for the villagers, and one shop building. Just anything more immersive than one villager per huse and said house includes their shop... Then, while they restock, they could spread gossip with each other.
To further increase the immersive vibe, in villagers should be able to trade with each other, like the Fletcher would trade the Blacksmith for bows and the blacksmith different things like flint, and every villager would trade with Farmers and Butchers, and their trades for food would become out-of-stock every now and again... Immersive, and they could spread gossip all the while doing this! In fact, in the evening hen they meet at the bell, the bell should be at a marketplace!
I do truly hope you review this fully, Mojang, and consider it amongst any other great ideas (not to be arrogant, just on a wish and a prayer)