the Dutch have been throwing up some fancy ideas bout air travel for a couple of years. But tho they all look cool, I doubt they are very feasible or likely to get adopted.
one was the circle airport that always had a perfect headwind..
The endless runway
https://www.nlr.org/news/the-endless-runway/
Very good in theory, but in practice you can't get that adopted because well airports are where they are, and they are typically already space and noise abation constrained. Especially not in a densely populated country like Holland.
+ much change in training/procedures required.
Flying V , again, very cool in theory.. but it requires a huge change in infrastructure and well, airpots are space constrained.
And engines on top of the plane mean they are difficult to service, so that won't work either unless every airport builds infrastructure to yank off engines from the top instead of just taking em off a plane where it stands. eg drive the tools to the plane.
So yeah cool, but most likely it'll get no further then jerking off ideas , but they'll never achieve actual market penetration with it.