Let me give you a heads up: ain't gonna happen. . . .

Really, what information do you need that's not already displayed? Esp. with the onset of more and more FSD.

It's not a matter of additional information.

A head-up display appears to be painted onto the street, so you see the basic information (speed limit + current speed + immediate navigation advice) without changing direction and focus of your eyes.

If you are in need of glasses for reading (and most of us will sooner or later), you can't put on and off glasses every time you want to read well focused.  That's last century's standard.