Hm, cataclysms story is spread across many zones and within many subzones and quests. If they do a "make everything with modern models/textures" would they seriously take the world as it is ? I think it is rather "all in or do not touch" for each zone. Maybe they remake several zones fully, but not the whole planet. Like Arathi and Darkshore. With a time-drake-npc
Edit: but I hope for a total remake of the whole azeroth