Board Thread:Questions and Answers/@comment-30771283-20170705160821/@comment-24407809-20170705232945

I remember reading an interview with Isayama in which he stated that, with his current monthly deadline, he is usually finished with a new chapter two days before he is supposed to send it to his publisher. He then uses those remaining to days to plan out the next chapter of the manga before officially beginning on its script. I think that moving up his deadline might actually kill him.

Ignoring the ginormous workload, however, I should point out that Isayama doesn't have control of how fast his manga is released. Bessatsu Shonen Magazine, the magazine Attack on Titan is published in, is only released once a month, and Isayama has no control over that. If he, for whatever reason, decided that he wanted to release his manga faster, he would have to switch to another publisher.

And even if you wanted to ignore that, it would be a terrible idea for the Attack on Titan manga to start releasing at a faster pace. This leaves Isayama less time to plan out stories for his chapters, and would ultimately lead to a huge dip in the quality of the story. The reason Attack on Titan is so good is because its release schedule gives its creator the time necessary to plan out a comprehensive story and then tell said story in each chapter, rather than wasting certain chapters on filler material while because they haven't had the time necessary to divide their overall story up into a format that can be told effectively in individual chapters.