Sure. There is some. For example, some fanfictions might involve Cheelai in new adventures with Goku and his friends. They could put her in different scenarios, like facing a new powerful enemy together. You might also find ones that develop her character in ways the original series didn't, giving her more complex emotions and motives.
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.
The release date for the next Dragon Ball Super manga is usually announced by the publisher. But as of now, there's no confirmed date. You could check their official website or social media for updates.
Basically, Broly is this super strong Saiyan. He gets into battles with Goku and Vegeta. His power is crazy strong. In the end, he stops being a threat and starts to be more friendly with the others.
Well, there are some great ones. A lot of fanfiction in this area explores the power of Goku in his SSJ4 form in the context of the Dragon Ball Super universe. Some stories might focus on battles that Goku could have in this form against new and powerful enemies, while others could be about his relationships with other characters while being in this super - powerful state. It really depends on what you're interested in.