I think people are getting far too excited. There was over capacity, too many holidays on very thin weak margins, at a time of reduced demand - Brexit, weakening pound etc. Why would anyone take risks ? Far better to increase yields and consolidate. Jet2 are the best at what they do, there is no need for them to do anything other than continue their modest growth. Replacing older frames when the opportunity arises, leasing in peak time capacity without the risks. I expect anything not Boeing will be leased in. When the MAX gets back into service, there will be a glut of used 738s on the market- I think J2 will just wait.