Ok, lots of different views upon this..
Star answers, pointing in all directions! But that's good, different views, different points of where the future goes regarding new ideas and where the development will take direction. Important to remember, if you don't like or need a function, other may. And no pressure to use something you don't like or need.
But, as I see it, a modern Oscilloskop is a big bespoke calculator already. The frontend is analog conversion to digital and from there it's math calculations all the way.
We will see, more and more integration of external function integrated into the scope.
We got it already, signal generator, test signals with educational functions, help screens and automatic setup functions of more advanced measurements and calculations. Event tables that you can scroll tru.. integrerted spectrum analyser, voltmeter, frequency counters, totalizers.. And even voice control, Hello Scope!
So to where, looking like what, is the question for the oscilloskop development.
Maybe the test industry will go the same way as the remote diagnosis in the medical field.
You attach a scope and start a video and remote control session with shared screen and controls with another person? The remote viewer can have more advanced measurements to look into the problem and help out further diagnoses based upon the signals you send.
There are still improvements to be done.