User blog comment:Uondarando/Episodes/@comment-8870791-20110821234158/@comment-1044263-20110822105225

Well the manga definitely won't change. Weekly or monthly depends on what magazine it is published in, and Ao no Exorcist is published in Jump Square (and that's monthly). The only way to change from weekly to monthly is to change magazines and there's NO WAY Square will let Ao no Exorcist go.