Hulu has some legen– waitforit–dary news for those missing “How I Met Your Mother.” The streamer announced on Wednesday that former “Lizzie McGuire” star Hilary Duff is set to lead a new sequel series from 20th Television, original creators Carter Bays and Craig Thomas and “This Is Us” writing duo Isaac Aptaker and Elizabeth Berger. The show received a 10-episode order from Hulu. Duff, who will executive produce, is set to star as main character and narrator Sophie, who is telling her son the story of how she met his father. The story, according to a logline shared by Hulu, “catapults us back to the year 2021 where Sophie and her close-knit group of friends are in the midst of figuring out who they are, what they want out of life, and how to fall in love in the age of dating apps and limitless options.”