How does this sound, a book or comic series surrounding Troy and Gabriella after the 3rd film, their events at Berkley and Stafford, leading up to their marriage and birth of their 1st child. The first one would also act as a prequel to the 1st film showing how Troy became a basketball star, and Gabriella became known for her intelligence, leading up to the visit to the ski lodge where they were destined to meet. In each novel would be flashbacks to the movies and the book series showing what happened what happened in-between and during the film series and books.
I can't believe Disney did not think of it.