I think we have some tunnel-vision looking for what we want as the driving forces of the marketplace. There will always be a drive towards excellent sound; however, we have seen "lifestyle" products driving changes in the market far more than sound quality!
I believe the Klipsch R-280PF foreshadows what is to come. By having the 4 amps at the speakers, the signal can be transmitted by BT or wi-fi (he Klipsch is BT, but wi-fi is the future for home audio). So a key benefit (that many of us don't worry about) is there is only one power cord to one speaker and a two signal cable running between the speakers. The AVR is eliminated and there is a remote for the speakers to control basics such as volume. It doesn't take a great leap of faith to imagine a wi-fi sending 9.2 distinct channels to different active speakers. Whether EQ is at the speaker level or involves a computer I couldn't guess. I'm of a mind that using a computer to adjust, but having hardware to maintain the EQ in each speaker would be the ideal as you could have serious "free" processing power for tuning the EQ, but the performance of the speakers would not require your computer's availability on an on-going basis.
OTOH, the computer may be part of what it takes since the AVR could be eliminated and I would think a computer with pre-pro software would be more economical than a dedicated hardware pre-pro (talk about economies of scale)!
After all, we are talking about the potential death of the DVD player as streaming tech gets better and better. If all processing could be done with high quality prior to the wi-fi broadcast of the signal (and it can), why not!
In-wall or on-wall speakers and WAF is passe'.
Related - 5 channel wireless speaker system: