Even seen from the inside I'd suggest the answer is a blindingly obvious: "nobody knows".....
Lots of opinions of course, e.g. the BMI deal is a good thing if expansion continues as planned, but OTOH if the state of the economy really bites forward bookings after the summer and as a consequence BA/IAG have second thoughts about their plans then the brakes will go on..and if past experience is anything to go by they will go on very suddenly.
It's a bit of a lottery so all I can say is good luck..........