The Dell XPS 13 has an "Edgefinity" display. It's bezels are thinner than the MBP. They managed a camera, without a notch too.
The 12" PowerBook had an edge-to-edge keyboard that I thought was fantastic.
I don't know how much depth it would add, but they could put in a non-chiclet mechanical keyboard.
I think the bigger issue is that the current MBP looks like the 16" Intel MBP, which looks remarkably like the original unibody MBP's from "late 2008" - silver body, black bezels, black keyboard. The only major design differences from 2008 to 2024 (that's 16 years!) are the keyboard base is black now, instead of silver, and they added a notch.