One common theme could be her learning important life lessons. As she grows up, she might face challenges in friendship, like dealing with differences among her friends. Another theme could be her discovery of her own talents. For example, she could find out she has a special gift for farming or taking care of animals, which she hadn't fully realized when she was younger.
Well, in addition to Applejack and Apple Bloom, if the fanfic delves into their family history, there might be other relatives who are related to their mother. These could be secondary characters that help to flesh out the story of their mother and how she was part of the family. But at the core, it's really about Applejack and Apple Bloom and the shadow of their mother in their lives.
She becomes more independent. As she grows up, she starts to make her own decisions instead of relying on others all the time. For instance, she might choose which part of the family orchard she wants to focus on improving.
One possible interesting storyline could be about the family bond between Applejack and Apple Bloom, and how their mother's influence (even if not directly present) shapes their characters. For example, they might inherit certain values from their mother which are shown through their daily activities on the farm.
Another idea is that all the characters are now parents themselves. They have to balance their work at Monsters Inc with raising their own little monsters. It could show how they use their experiences as scared kids or scarers to be better parents.
One idea could be that Anya and Damian grow up and both enter the world of international diplomacy. Anya, with her telepathic abilities still somewhat intact, has an edge in understanding the true intentions of other diplomats. Damian, having grown into a confident and intelligent young man, works alongside Anya to solve international crises. They start off as rivals in this new world but gradually realize their feelings for each other as they face challenges together.
Maybe some of the older ponies in her family, like Applejack, could be main characters. Applejack could be guiding her, teaching her things about the family business or just sharing life lessons. And through these interactions, Apple Bloom gets closer to finding out what her cutie mark represents.
This is a wuxia novel. The protagonist grew up in a small town and had seven or eight friends. Each of them had different abilities. There was also a girl in the story who had known each other since childhood, and the protagonist had many emotional entanglements with her. I hope you like my recommendation. Muah ~
There is a fanfic called 'Grown - up Spike: The Dragon's New Role'. In this story, Spike has to take on important responsibilities in Ponyville as he grows up. He helps with various community projects and also deals with some old foes in new ways. It's quite an engaging read as it combines elements of growth, friendship, and adventure.
One common theme is friendship evolution. As they grow up, their friendships change and become more complex. Another theme is career and life choices, like what each Crusader decides to do with their lives based on their cutie marks.