User blog comment:B214/Volume 21 info & spoilers/@comment-1359322-20160218035841

Info on the upcoming volumes and potential tears for everyone.


 * Volume 22 will be the epilogue to the Fourth Arc and Beginning of the Fifth Arc. The Fifth Arc will be the final arc of High School DxD.


 * The concept of the final arc is DxD Characters Final Battle and Festival (I wonder what kind). And the final chapter will regain the erotic moments in Arc 1-3 and further expand on it.