I've also been told by a knowledgeable source that FedEx really likes hiring current or ex-military members. Seems like the proverbial "best Dispatch candidate" for them is someone current or ex-military with 4 years+ experience and at least 2 years international experience, with flight instrument ratings and as much actual flight experience as possible.
I suppose it makes sense that they want Dispatchers who are knowledgeable from both behind the desk and behind the flight controls, but that also certainly makes them the most discerning and picky if that's true.
Good luck to everyone still waiting for a yes or no!