The series finale of This Is Us ended on Tuesday night with young Randall exchanging a look of contentment with his father, Jack, as they basked in the glow of a lovely, if quotidian, moment of family happiness on a lazy Saturday in the early '90s. Also, in the present day (which is now the 2030s), Randall, proud father of three adult daughters, excitedly learned from one of his children that he would be having a grandson. Other than that, we can't think of anything particularly newsworthy about the Pearsons' future that stands —