Currently, we are not able to duplicate our Worlds. The problem with this comes up if you want to use the same world for multiple campaigns or the like, leading to you being stuck copying and pasting every single article. 

The ability to duplicate worlds would give everyone the ability to easily make multiple separate worlds with similar or equal content without the hassle of copy+past-ing for hours on end. 

It would also be possible to easily have multiple authors/editors expand your world separate from each others influence. This allows for a more dynamic and creative flow that you can use to cherry pick the best parts of either idea. 

Content creators can also use this to create challenges for select people to expand on a world and, for example, turn it into an easy to start competition.