My understanding is that AFRICOM HQ will remain in Stuttgart. I think a command ship is a bad idea for a number of reasons. First, nobody really wants to "live" full time on a ship for a 2 or 3 year staff tour. Dependents at sea, on a massive nuke powered cruise ship sounds keen, but it would not financially feasible. Nor would I want my family living on a big floating target while I was working off the coast of Somalia, Nigeria, etc. There are also bandwidth contraints, logistics and other issues that prevent this from being a viable option. JTF HOA was moved ashore from Navy command ships for good reasons.