Season 4 featured a returning couple, the Merrifields, and their relationship with potential trial sister wife Roberta, who is from Brazil. There were also some new additions, including the Davis family, which not only welcomed a new sister wife by the end of the season, but also announced the impending arrival of a baby in the family.
A lot happened and fans aren’t ready to close the book on many of these Seeking Sister Wife families just yet.
Source: https://www.distractify.com/p/seeking-sister-wife-season-5