The towns are still there, the flying is still the same and the same aircraft will still be doing the same runs in another 20 years.
The only thing that changes every decade or so is the name on the side of the aeroplane or the logo on the tail.
I feel sorry for the young whipper snappers flying 40,000 hour 207s in the future that spend most of their life in thermal turbulence 10-15% overweight