"It's never going to be the same as in 2019", many of the doom and gloom merchants say. And that's a matter of fact. Just as in 2019 it was not quite the same as in 2018 and in 2018 it was not the same as in 2017. The world is constantly changing. Think about all the companies that vanished since 2015, all the new ones which were created and the changes in fleet types and numbers, destinations and whatnot else in all those which lived through this entire 5-year period. Which ones of the existing companies will make it through the next 5 years, what will they look like and what will the newly found players be like remains to be seen. Some tails will get repainted, that's for sure. Some will do better than others. But, on the grand scheme of things, mass air travel will still be there and growing - it will just have some chairs reshuffled, as it has always been.