I seriously doubt the world will come to an end in 2025 and I doubt that all the brands mentioned will come to an end in 2025 either. BUT, as we age out, there are going to be less and less people who care quality sound and quality build.  Home theater is where the money is and it is getting ing in the tooth.

On one hand I can see high end audio in decline, on the other I see this as a golden age of audio. Recently I've been reading through some of my 1980-90's era Stereophile mags, fears about the decline of audio existent then just as today. There have always been complaints about the high cost of audio, always plenty of equipment out of reach for many.

 

And don't forget about the used market, internet gives us easy access, and think about the continuing accumulation of purchases that go onto the used market. I'd like to see some data comparing new sales to used, has to be greatly impacting new sales. I could make an argument higher end audio more affordable than ever.

I was an audiophile in my teens.  But, I didn't purchase a pair of serious loudspeakers until I was 40. By then, I had a house, children who were past the toddler stage, and a bit of disposable income.  I suspect I am not alone.  Give the Gen Z kids time.  Chances are at least some of them, 5-10%, will discover what a decent audio rig can do for their music.  That's enough to keep the industry afloat, I think.