User blog comment:B214/Season 3 confirmed!!!!!!/@comment-24173056-20140617025633/@comment-16281343-20140617234648

There are three, maybe four, possible SS that they can include.


 * Memory of Oppai : Timeline - After Volume 3
 * Oppai of Tennis : TL - After Volume 4
 * Hell Teacher Azazel : TL - After Volume 4
 * 300 Ise : TL - After Volume 5

But ofc, I'd rather have them focus on distributing the number of episodes to the main story effectively rather than include SS and then cut some scenes on the story.