[@vancexentan][@Renny] My plan was actually an expedition there to capture a band of extremely powerful Hunters, Troupe level if you will. Their motives are currently unknown, but intel has so far gathered that their purpose there is malevolent and could possibly lead to some very bad things, worldwide. The initial group members would be tasked with creating an A-Team of S-Rank Hunters to deal with this threat and expedition. 

Another note, it's unknown to me whether or not it is official cannon, but it is at least highly speculated that Alluka possibly came from the DC. I also have a few solutions to the "everything is just big", and "monster of the week" situations. As virtually everything is unknown, I will be taking liberties. Not to give any spoilers, but humanoids and ruins, and even possibly scattered small nomadic tribes will possibly be worked into being present on DC. Nobody has gone there long enough to find out that, at one point in time or with sufficient information, there's not a way to live and survive there living the harshest of lifestyles. 

This will also be a massive effort, as sponsorship and personal wealth dumped into resourcing are virtually unlimited. We will have access to help that of a war effort. Naval help, war contraptions, Nen Soldiers, ETC. Maybe even a special builder-man giving us nice toys and other means to help survive and defeat large entities. 

 Remember, we are making this expedition with the goal of locating this group of criminals, finding out why they are here, and gathering any potential resources we could bring back. We plan to be landing and essential start constructing bases of operations.