Summary
Olivia Rodrigo's absence from High School Musical: The Musical: The Series season 4 was due to her busy pop music career.
According to Tim Federle, the show's creator, reintroducing Nini would have diminished her significance to a brief appearance since there were already numerous new characters and plotlines to focus on.
Nini's narrative comprised of her transition to a different school, embarking on a cross-country journey to California alongside her parents, and ultimately making the choice to pursue a career in songwriting.
Olivia Rodrigo's absence from the new season of High School Musical: The Musical: The Series has been explained by the show's creator. On the first two seasons of the Disney+ meta musical comedy series, Rodrigo portrayed musically talented high school student Nini Salazar-Roberts. However, as her real-life career as a pop star began to flourish, she scaled back her involvement, appearing in a recurring role for season 3 and only appearing in three out of eight episodes. In the show's fourth and final season, which premiered on August 9, she did not appear at all.
Variety recently interviewed creator Tim Federle about High School Musical: The Musical: The Series season 4. When discussing Rodrigo's absence, Federle explained that while Nini's return was a possibility, it was never seriously considered due to the focus on other characters, including original High School Musical cast members appearing as themselves. If Nini were to return, her role would have been reduced to a mere cameo. Below is Federle's complete statement:
How Nini Was Written Out of High School Musical
I was extremely confident about the conclusion, and Olivia's dedication to her songwriting profession keeps her incredibly busy. Given the fact that we are currently introducing numerous new individuals along with the original characters, our intention was to reintroduce other immensely significant characters as well. However, with only eight episodes, it seemed as though these appearances turned into brief cameos rather than meaningful narratives. Though I did extend the offer to Olivia, assuring her that she can always return, we never had a serious discussion about it due to the necessity of crafting new relationships.Upon its original premiere, Nini emerged as a prominent figure in High School Musical: The Musical: The Series. Apart from assuming the role of Gabriella in her school's theatrical rendition of High School Musical, she found herself entangled in a captivating love triangle. After returning from summer camp, Nini embarks on a relationship with the dashing and talented EJ (Matt Cornett). However, her ex-boyfriend Ricky Bowen (Joshua Bassett) endeavors to rekindle their romance by auditioning for the musical and ultimately securing the role of Troy.
Nini transferred to a new school during season 2, but returned before the season ended. In season 3, which took place during the summer, Nini continued her pursuit of an arts education. While her friends were at drama camp, she decided to take a road trip to California with her parents and ended up deciding to move there permanently to pursue songwriting.
Following Nini's departure, High School Musical: The Musical: The Series introduced new characters such as Mack Alana, a hotshot sitcom actor played by Matthew Sato, and Dani, a social media influencer portrayed by Kylie Cantrall. Meanwhile, Ricky has developed strong feelings for Gina Porter (played by Sofia Wylie). However, their relationship faces its own challenges and obstacles.
Source: Variety