In a fanfiction, Broly and Cheelai could get involved in a time - traveling adventure. Maybe they go back in time to the era of the Saiyans' home planet. There, they learn about their ancestors and the true power of the Saiyan race. Along the way, they face challenges that test their relationship and their individual powers.
I don't have the exact date for you. Usually, such releases are announced by the creators or the publishing company. You can regularly check related news sources or manga forums to stay informed.
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.