As far as I know the old friends event only exists in VV2.

In VV3 these are the events that give you new people:

[spoiler]Barrel of babies: up to 3 children will arrive.

Canoe from the other side: an adult male who is an Adept Builder.

Crystal of Reflections: twins an existing villager. The clone has the opposite likes and dislikes.

Vial events: twins or triples an existing villager.[/spoiler]