dont get me wrong, Daedric was one of my fav parts of the game, but with the whole rugged landscape of Skyrim, it doesnt seem to fit with the environment, which is one of the things that Bethesda said they would try to do.
They said that the basic types of equipment will look like they were made in Skyrim, but the more extravagant equipment will look like it was imported from other places. They didn't say everything will look like it was made by a brutish Nord.
Anyway, I'm confident that these things will be returning: Daedric shrine quests, either daedra conjurer lairs or daedric ruins, daedra summon spells, and daedric equipment.
Also +1 for there only being 1 of each daedric armor piece. Although I do want a few different daedric helmets like morrowind had. And I really hope dremoras collapse into a pile of ash again, it's so annoying not being able to take armor from a dremora because it's "dremora armor" instead of "daedric armor."