the W08 schedule is trimmed down to allow the schedule to cope with the loss of the 2 B733s and B736. It'll save on double-drops, ie, GLA-EDI-Destination, we've seen in previous winters.
Crew for S08 who are on fixed term contracts will be lucky to get extended contracts this year. They'll most likely be asked back next Summer.
Next Summer, bigger A/C will be operated on routes. Most flights are selling out fast for this Summer.