After 3 British soldiers were killed by a roadside bomb, the BBC reports:
World affairs correspondent Paul Wood said an official announcement about the "dangerous retreat" to the airport would not be made until after the event to reduce the risk of attacks from insurgents. And the BBC understands that British soldiers are expected to move from Basra city altogether to the airport "in the next few weeks over a single weekend".
That's a direct quote and while it doesn't actually say when the "dangerous retreat" will take place, it narrows things down some. Perhaps it makes no difference in that the insurgents can figure things out for themselves, but it does provoke laughter, when it doesn't provoke tears.