It will inevitably disappear in time. Once we have the necessary technology to have these sensors work reliably below the display layer, that will be done.

I am more concerned about the non-functional but (to me, at least) similarly bothersome design quirk of these iPhones and some other modern phones: rounded corners that mask the display edges. I worry rounded corners may not disappear any time soon because there's little technical reason for them to exist; the rounded corners are aesthetic. For me, I prefer the appearance of phones with shorter corner radii—sharper lines—such as the Razer. But the popular preference for large-radii corners is undeniable (e.g., Twitter's conversion from square to circular avatars).

I just want a plain rectangular display, thank you.