as everyone who is passionate about the danmachi universe knows, on the floors below the 59th floor there is a corrupted spirit that has been appearing in SO since the 4th volume, so it would be possible that in the next expedition of the Loki family, they invite the Hestia family, since many high ranking members like bell, and at some point in the dungeon they are separated from the group aiz or bell or both and goes to the floor with the original corrupted spirit fight him and somehow make him come to his senses giving bell spirit blood or some magic.

would that be possible? after all, the hestia family, this is where Bell's grace is and if he is the last hero, and he has to conquer the last floor of the dungeon how could he accomplish this without an up in his base power how could he go there if not even the Zeus family and ivy couldn't and they had level 8 and 9 adventurers.