Fairly similar thing here. Got flights booked Stansted - Barcelona and back in late August / early September. The flights are listed as "sold out"; the only tickets available are for the early and late departures - the two mid-day operations are listed as "sold out" every single day right up to October. My guess is that they are currently planning to cancel them nearer the time - or possibly reinstate them if things have improved. I don't believe they are *actually* sold out in the slightest.