I very much doubt that bmi will be sponsoring any one for some time. The word on the street is that they are finding life tough and quite a few of their 737 guys are going or at least considering a move to easyJet.
Britannia is no surprise really since they seem to be looking for a steady trickle of drivers. A few guys were recently selected from the CTC scheme on 6 month (don't quote me on the time scale) contracts on the 757/767.
MG