User blog comment:Iamwildbear/Manga picking up after the anime ends?/@comment-24502975-20140802005725

The manga has been licensed and newer raws aren't being uploaded, so it's going to be quite difficult to find translated chapters from here-on out.

However, if you wish to continue the DxD story, I recommend reading the Light Novels; they're way better than both the anime and the manga, and are a lot longer as well. (To put it in perspective, season 2 of the anime ends with volume 4, and volume 18 is currently in the midst of translation). You can find them here: http://www.baka-tsuki.org/project/index.php?title=High_School_DxD Volume 5 would be where to continue after season 2.