User blog comment:B214/General Discussion/@comment-30924344-20170529232846

I have a pretty good idea when Season 4 should come out. All the seasons so far get announced and air 10 months later:

Season 1 announced in March-came out in Janurary

Season 2 announced in September-came out in July

Season 3 announced in June-came out April

Season 4 was announced in October but it won't come out in September because the Fall anime air in October so it should come out in October too and also because none of the other seasons have aired in Fall.