i think it would be nice if the quests you cannot get (because you dont have access to the adventure modules) would be listed with red text in the adventure compendium.
so people can actually see what quests they cant do instead of running around trying to find the quest givers, but then noticeing "you cant get there because that area is locked away".
and i guess it wouldnt take long to change this and it helps alot finding quests you can actually do.
also recheck all map entrances, they should appear red too:
a few are red already like quest doors and quest giver chalices, but others are not i.e. the catacomb entrance is green on the market map but requires a bought module.