Well, some are important, i.e: the Fallen that has a cutscene in-game, probably deserves his own page. How would you go about listing all of them on one page and also getting across their specific statistic information?
Will there be a section one day for the Hell mod? I never played Hellfire without the mod itself so I don't know if a lot of those new monsters I saw were exclusive to the expansion or if some were thrown in there by just the mod itself.
As it stands, probably not. Mordor doesn't want this amount of detail about his mod revealed it seems, and in any case I have no idea how to datamine the stats from The Hell anyway.
Also, all regular D1 monster pages are now done, all I'm adding now are a few missing images here and there