Yes, because I think the first world revamp was fucking atrocious.
Imagine a re-cataclysm to fit an old god(ish) theme, with all that Blizzard knows now. I think it would be magnificent, and a great way for Blizzard introduce their new level scaling system to the old world. I'm thinking every ~20 levels would be a set of areas, with Azeroth giving players the option to go all the way from 1-120. The world has been shifted and altered and twisted to reflect the "true" Hour of Twilight, but in general the old zones are expansion-less; I don't want another case of every zone for leveling reflecting an evil that no longer lives. Thankfully, Old Gods themselves are pretty timeless and hard to kill.