Wouldn't it be cool if Morganthe went to the previous worlds and added a little taste of her wickedness to them? There are many regions in each world that could be extended for such an occasion. For instance: The Death Gate at the end of Haunted Cave Barkingham Palace in Reagents Square (she could take over the throne) The giant doors in Nidavelir just scream to be opened And I'm sure there are many more places.