I don't see any revolutions in commercial aviation coming.
In my time on this planet, (since 1953) ,the change from recip to turbine power took place but the changes to the Jet airliner have been evolutionary rather than revolutionary. Modern airliners don't look very deffferent from the Boeing Dash80 / 707.
Yes, some are bigger, engines are a lot more efficient, materials have improved and got lighter, (composites), electronics are now in control, but they still fly at about Mach 0.8 at 35 to 40000ft.
An alien who visited in 1960 and came back today would not see much change. We had Concorde but that's history now.
Blended wings may come but I don't think I will see them in service. 30 years at least.
I also think we may be near Peak Aviation now with all the Green agenda.