There needs to be more in hell.... Everybody loves smugglers.... So here's what I thought of:
Demons every once in a while may want to go to the surface with you(if you say yes you may lose favor) you may get currants or a pet (I am making a forum for) or 500 currants.
Also smuggling type missions (get hellish bloodstone).
Devs may think of their own, maybe team missions?