User blog comment:B214/Season 3 confirmed!!!!!!/@comment-74.173.162.168-20150315185738/@comment-3965848-20150315223144

It is possible to have 3 volumes in 1 season, examples; shinmai maou no testament, blade dance and infinite stratos and that's just the top of my head. Even dragonar academy and date a live have 4 volumes in 1 season.