There are authors who are really good at creating complex plotlines involving Goten and Trunks. For example, an author who can write a story where Goten and Trunks are sent to a parallel universe and have to find their way back. These types of stories require a lot of creativity and knowledge of the Dragon Ball Z universe, and the best authors can pull it off while also making the characters feel real and relatable.
Yes, 'Dragon Ball Super' fanfic is quite popular. There are a large number of fans around the world who are passionate about the 'Dragon Ball' universe. Fanfic allows them to explore different storylines, character developments, and scenarios that may not be part of the official canon. It gives fans the creative freedom to expand on the existing world, whether it's creating new power - ups for the characters, exploring different relationships, or imagining entirely new adventures.
It's hard to say for sure. The decision depends on various factors like the popularity and demand for it, as well as the plans of the creators and publishers.