While it is nice to see Jet2 paying their staff, they have got no money comming in, the Dart Group may still be busy as they are a logistics company, but they will not be able to prop up the company for ever. With no outside income, any airline will struggle.
Summer 2020 is as good as written off, anyway you cut it. Jet2 several years ago decided to focus on holidays, this will affect their future massively, in hindsight the Airbus expansion was not a good idea, they will be the first to go, Jet2 have massive overheads, they have their own handling, employ more people at the check In than their competitors, which is all money. This thread is about 3 large operators, sadly I think the two companies who rely on Holiday traffic will struggle to survive, if they do they will be much mich smaller.