User blog comment:B214/Volume 22 spoilers/@comment-83.26.181.159-20160802150728/@comment-1359322-20160802151233

His name is listed in the Azazel Cup, so Diehauser may still have the chance to be the new Satan. Remember the winner of the Azazel Cup gets to have one of their wish granted.

Though i guess this might mean that Diehauser might win the tournament and have himself pardon. Or at least someone who wants him pardoned like Rias, Ise maybe even Sairaorg.