Beam steering technology in audio systems is the future. Add to that ribbon drivers.
The electronics side and cost will come down - designs will evolve into flat panels or spheres or curves of some type and offer full control in both X & Y axis.
That's my Nostradamus for the day.
Honestly, I saw this coming back in the 80's while still stacking components for FOH and using JBL & McCauley acoustic lens horns for short throw stuff.
Pretty much a no-brainer really watching the evolution and integration that's ongoing.