GCE is correct. Baby and Regional are to be part of the deal with IAG. They will not be integrated into BA and will be sold off if possible.
I very much doubt whether Granite would buy Regional now. They've had virtually an 8 month run at it so far and haven't managed to raise the required capital to buy it and as we all know, buying it is one thing, having the cash to carry it on a completely different matter.
Hopefully there will be some others willing to purchase it.
As for Baby, I'm not sure that this changes anything, just that the seller is now IAG not Lufthansa. Hopefully the interested party is still interested.