Yeah, this is the end of that storyline in this version (I know, it sucks... but I had to draw the line somewhere, as the dungeon story had taken an ungodly amount of time by this point).
Dungeon Tents are a large part of the next update, so I'm planning to lump in at least a small expansion to the succubus dungeon along with all of that new dungeon content. Hopefully we'll at least get to the point that players can equip the girls with the items.