SR71
From a pure financial point of view it would be less expensive to put a trained Airbus pilot in the seat rather than re train a 737 driver, how ever putting a mainline pilot on mainline T&C's would defeat the objective. One story doing the rounds is baby getting additional aircraft for a new base at STN with all current bmi domestic routes moving to STN and these would be 319's ex bmi drivers would be offered these but on baby T&C's.
Whilst not wishing to get into a bun fight one has to remember that the problem here is not baby or regional, but operations from LHR.
What won't be happening is regional to Flybe or baby to Jet2, this maybe a sale or partial sale, but be under no illusion it's not a fire sale. In the mean time it's business as normal, please speculate all you like, but before you press submit reply give a thought for the many people in the bmi group who are doing a fantastic job with this very dark cloud over their future at this time
Cheers
Inkjet