There has always been the thought that the editors forced the authors to lengthen the most popular manga, creating new sagas even when it was clear that the main course was now over, so as to keep them in publication even longer and be able to earn more.
Have you ever wondered if Shueisha forced Oda himself to extend One Piece? Even if perhaps the author intended to finish his story long before the scheduled time?
Here, Oda himself answered this question, reviving and also expanding certain doubts related to this story:
“I’ll put and end to One Piece when the time has come no matter what Shueisha asks me to prolong the series. It totally depends on my own desicion.
Dragon Ball and Yu Yu Hakusho were prolonged contrary to the authors’ intention. Torishima, former Dragon Ball editor, regretted it.”