Is BA now loading bags onto a few trucks to transport them by road to Italy?
Will they then be sorted and redistributed to the correct place, sent by road again or by air?
Are the bags going to the original destination or to the home address of the poor traveller?
If your bag was left at T5 last week and gets shipped to your the original flight destination, chances are that you are now home again, so the bag will need to be sent back to Heathrow, and then back to you, is this correct?