People have already been taken on as a summer "top up", on short term contracts until Oct 31st. This latest recruitment seems more of a reaction to possible resignations than anything else. There is a lot of talk of the sandpit on the flightdeck.
If Jet2 are trying to beat the rush, they will have to be offering full time contracts and earlier rather than later starts. If not, surely there will be a lot of guys putting any potential job offer in their back pocket, and seeing what happens between now and next spring???