What's the deal with the new Dubai World Central airport? From what I've read it seems it will operate as a supplementary rather than replacement for the current DXB. Given that they have the opportunity to design from the ground up, it seems rather a waste that they will stay at the old airport rather than all relocate to the new one (yeah, I know the new terminal is coming, but given the rate EK is expanding, it will probably be obsolete from the minute it enters operations).