It will take a few weeks to re-ballot, then if the enthusiasm is still there, they can hold the public to ransom in a trough passenger period in January or February!
But whatever, WW must sort this problem out. The Pension deficit is pressing, the profitability is irretrievably lost, staff costs out of control. The baggage handling should be outsourced to get those nightmares off the payroll, even the LHR crewing could be outsourced. We have unskilled staff paid more than bank managers (if there are any 'bank managers' left!). The union is so backwards facing and stuck in a 70s style Stalinism, and the cabin crew have followed them because they have got their old contract staff double the 'going rate'. BA shares are going to continue to be very unexciting until the company regains a handle on costs. This is seriously a 'last chance' for the board to whip BA into shape for the future. The investors are about to lose patience.
As for the crew obeying the decision, they will. BA can be very heavy on improper absences. If the strike is off, ALL services will be ON! They will not dare malinger!