Beth and Randall will have some drama
Though they're seemingly perfect, This Is Us Season 3 will show some of the fractures in Beth and Randall's marriage. We've already seen some of the strain after the two started fostering, and after they opened a business together.
"There will be a bit of an exploration of marriage with regards to Randall and Beth going through times that aren't all sunshine and rainbows," Sterling K. Brown told People. And that's not to say that they are in danger of parting ways, but marriage is real and takes work."
We'll also see more of Beth in general. Kelechi Watson told TVLine that we'll see more of Beth's family going forward, after being introduced to her cousin Zoe in the Season 2 finale.
We'll meet Deja's father
Deja's mother surrendered her daughter to foster parents Beth and Randall in Season 2, but not without a fight. Things might get even more complicated with the introduction of her father in Season 3. According to Berger, Deja "may know more about him than we previously let on," and that "we'll get to know a little bit more about what that relationship is moving forward."