What´s the wisdom behind a dry-lease then?
I'm not an airline executive, I can't answer that question, however, <speculation>if CV do become involved in buying up cargoitalia I can't see why any right minded person would want to keep a scabby old fuel hog DC10-30F when you have access to a few -400Fs which are going to be sold or sub-leased when the -800F is introduced. If CV want to reduce capacity due to fuel prices/increased comeptition/whatever bumping a couple of excess -400s off to a "new" MXP base would have it's own twisted logic.
Given CV management's enthusiasm for spin offs and joint ventures, you just never know what might be coming in the near future...</speculation>