I have heard that its going to be the removal from a lot of european routes from man. A mainline base been added there to do these routes for BA due to the poor performance of BACX at man.
They are holding out for a few months before any changes to the BA shorthaul network to see how BMI fair and if it was going to be a proper mainline announcement then it would not have been delayed, has much more of a footprint of BACX's typical indecision. Not long now though.
Rumor has it the only way they can do it with mainline is by a dramatic downsizing of the other mainline base they have to free up the aircraft needed..........Said base is also in Willies targets.