Class D amps seem poised to take over. Then what?

Waiting until someone makes a class A class D

Some speakers like Magnepans need current 

I prefer 60 watts of class A to 1200 watts of class D

Yes, Class A. Now that’s an amp!!!

It will be interesting to see if manufacturers start to migrate away from less 'environmentally-friendly' amp topologies.  As executive leadership, and designers, become younger in these companies, they might make the decision to focus more on 'greener' designs like Class-D.  And, there is the possibility that environmental agencies start pushing for such a thing, just like has been done in the auto industry.  If tax credits are offered for R&D towards this, that will further incentivize companies in the green direction.

However, just like with cars - where there will always be 'classic/muscle car' enthusiasts -  there will also be Class-A, A/B, tube amp enthusiasts...and hopefully repair techs to service them ;) 

Of course, we're probably talking about decades, not years, but clearly there is momentum already occurring in this direction.

I had an ICE class D amp.  I liked the sound but I'm a ham radio operator and it generated RFI which was picked up by my transceiver.  Went back to class A/B and now no noise.