I think it is worth looking at the memo posted in the bmi forum
For the pilots, there will be different requirements. The aircraft will be damp-leased from Astraeous and the initial plan is to operate with their flight deck crew members. There maybe opportunities for bmi pilots to convert temporarily to the B757, but in any event, all arrangements will be made after consultation with pilot representation and in accordance with applicable provisions in the AFS (Agreement for Service).[/
It is premature to comment on the outcome of those consultations.
However - the destinations for the 757s are certainly not the most delightful.
HWB