My prediction for the future is small pilotless aircraft with point to point travel into tiny airports.
What are you basing this on? The economics of flight would seem to favour fewer larger aircraft over more numerous smaller ones.
ATC speed limits would probably be relaxed with the advent of more automation and high speeds could be carried into the approach. Also the approaches could be greatly abbreviated since there would be little or no human involvement. Basically drop in like a rock and throw out some high drag devices for a short landing. A stabilized approach for safety would be pointless.
The speed that modern jets travel at are more to do with fuel efficiency than regulation. As for rapid, short landings this sounds like it would put considerable strain on the passengers and vehicle. What is the justification for this?
The VTOL efficiency issues might be solved, but much later I would imagine. The aircraft could drop into an air cushion generated by equipment installed on the ground.
For takeoff IDK, an aircraft carrier on land? Maybe.
Is there any research you could point to that suggest that these would be both possible and commercially viable? Have there ever been pilot studies? It seems that you throwing out ideas at random on that basis that they sound futuristic. If so I'd like to remind you, and all members, that all claims should be backed up with good evidence and reasoned argument. Otherwise the thread will just be locked.