Revord revealed Missy's ending on Young Sheldon bummed her out, but there's a chance things might get better for her on Georgie & Mandy's First Marriage. Holland spoke to TV Insider about the character's return and how she'll be different in the new series:

As fans of Young Sheldon will recall, Cooper family patriarch George Sr. ( Lance Barber) died in the final episodes of the series, forcing the family to cope with his loss, but viewers haven’t seen that full journey, which will be explored in Georgie’s relationship with his sister Missy ( Raegan Revord ).

Young Sheldon set up the perfect replacement for George Sr after his death before the beginning of new spinoff Georgie & Mandy's First Wedding.