If you deal with the fundamental problems of the protocol itself and also provide backwards compatibility... Congrats, you've just reinvented Wayland and XWayland.
Dealing with X11's problems while still being X11, when X11 is the problem? Yeah, I wouldn't hold my breath either.
I feel like a lot of people tried Wayland in 2020, a bunch of things didn't work and they've been permanently traumatised.
I switched my laptop years ago, but my desktop only fairly recently - multi screen, mixed DPI with variable refresh rates for gaming took longer to be ready than my laptop's single screen, normal DPI, fixed refresh rate config.