While Fan fiction is by its very nature always quite derivative their are benefits to writing atop per-established concepts. One aspect that will become something of a negative as the medium continues to grow and becomes assimilated by the main culture as this generation and the next slowly comes into their own is that many artist and writers will continue to add to the established making these old concepts more rich but maintaining a status quo that drains originality from the zeitgeist. (A word I've come to believe means our collective artists and opinionated out put into the media and culture at large) Its a double edged sword and it is worth considering but it wont bring about the end of the world... I think... I'm looking at you adventure time.
This actually has already occurred in comic books. Comic books is exactly what I'm talking about. While all works are in someway derivative just as everything can be considered derivative when you put it under a microscope Comic especially are. We have in comic books what I'd expect to see be produced from fan fiction in ten to thirty years. Its an established form of fiction that authors add too over the years. Its sort of an amalgam with philosophys being applied to characters and flat out changed over the coarse of years.
This actually has already occurred in comic books. Comic books is exactly what I'm talking about. While all works are in someway derivative just as everything can be considered derivative when you put it under a microscope Comic especially are. We have in comic books what I'd expect to see be produced from fan fiction in ten to thirty years. Its an established form of fiction that authors add too over the years. Its sort of an amalgam with philosophys being applied to characters and flat out changed over the coarse of years.