The Princess Diaries 3 (unreleased as of my last update, but rumored) is expected to continue the story of Mia Thermopolis, now a young adult and a reigning princess of Genovia. In the likely plotline, Mia is balancing her duties as the queen-to-be of Genovia while navigating personal relationships and the challenges of modern royalty.

A major element could involve Mia’s struggle with the responsibilities of the throne and the pressure to marry, especially since her late father’s will stipulated she must wed before taking the crown. As Mia tries to find love, she might face opposition from the royal council, forcing her to make difficult decisions about her future.

The movie may also explore her evolving relationship with her best friend Lilly, her grandmother Queen Clarisse, and a potential new love interest, possibly a character introduced as a political ally or a rival prince. The film would likely culminate in Mia embracing her role, learning to balance love and duty.