Given those numbers then I guess it could be possible.
With economies of scale in a single location, it is not beyond the bounds of imagination that BA concentrate all their firepower in one location, they have also just gained some additional mx hangar capacity as well (assuming the stories are true - of course).
Stockley Close and the old BMed building would be available should there be any additional office space required.
It will be a very sad day when the last bmi tail fin flies into history