User blog comment:B214/Talk About What You Want! 2/@comment-69.60.245.218-20140817211427/@comment-1359322-20140823010314

Well lets just wait and see for now. At least we know that Season 3 would cover 5 & 6. And the possible Season 4 covering Volume 7 - 9. Not sure about the anime ending in Volume 11 though. After all most anime don't go over Volume 5, if they stopped at Volume 11 permanently, then the DxD anime would end with Issei dying.