Hey maybe in the show after the last protagonist Star faces, They'll switch focus to Meteora when she's 13 sometime into the future when she has to deal with other people's opinion of her since she almost destroyed their kingdom, and emotional experiences throughout her adolescence, as well as new protagonist's yet to rise, and previous characters in their forties most likely; others like Star's dad(river) even older or passed away with those years they last spent playing a major role in the current plot.