For example, every Christmas there's a new welfare servant for the event. The three santas so far are Altria Santa Alter, Jeanne d'Arc Alter Santa Lily, and Altera the San(ta).
They do however reappear during event reruns. The Altria Santa Alter event will have a rerun this year in November.
Will wellfare servants reappear during their respective event, More specifically altria santa alter?