Africa once again?

My husband and I are hoping to return for another turn in the Peace Corps. We served in Ghana from 1973-1976, in Kumasi on the campus of the University of Science and Technology. Now we've been nominated for September for sub-Saharan Africa. We are in the throes of medical clearance and trying to get our affairs in order. It is very difficult at this point in our lives to organize things so that we can leave for 27 months. We can't wait for the invitation - we just have to assume that it will happen. I gave notice at my job, and we are busy reorganizing our lives and thinking about packing our things away.