Can't for the life of me remember or figure out what issue it was, but there was a pair, Dungeon and a DRagon article detailing a city of ghouls in the Underdark and the Ecology of the True Ghoul. From the 2E era.
the majority of content from Ed's Hells articles has not been redone. they won't likely be featured in regular Dragon anytime soon, since Demonomicon takes up enough space. seriously though, getting all those lords (a few dozen) statted would be a huge space hog, which is just about the only reason they didn't make it into FC1, from what i understand.
i wish there was some medium out there that could accomodate people's wishes for these guys. maybe we'll do them on the Creature Catalog site. there are a few of them in 3.0 form already...
By the way I would have added the Demonicon AND Core Belief articles, but I know from Gen Con So Cal, the Paizo had (has?) been trying without any luck to get permission.