That’s because the third season will handle at least the volumes 13 to 17 of the light novel, and there’s a lot of content in those. But if anything, I’m predicting it’ll cover only five chapters (while s1 and s2 covered six chapters each).

I’m saying this because I’m predicting they’ll try to give an anime version for the whole series, since it’s extremely popular in Japan. However, it has 26 volumes, and that doesn’t split evenly into sixes.

There are two solutions for that:

• make s3 and s4 seven volumes each. But then s3 will feel rushed.
• make s3 five volumes, s4 six volumes, then release a s5 with a single cour.

I’m predicting they’ll do the later.