Improvement of villages, mobs or blocks

I would like them to make the villages more interesting (Bigger and I have the idea of ​​adding as a castle or for the villagers to do more things.
It could also be that they add more mods (preferably that fly or are tamed).
Another option is to add more construction and modernity objects.
Add more attacks like the pillager invasion.
Add as a variety of cities as the villages of the villagers.