AMOLED speculation aside, who on earth thought that there'll be an iPhone screen which covers the ENTIRE front glass surface area, bar the front camera, prox/ALS and earpiece? Go back to design school... or maybe just enroll there, period, and possibly take up engineering and some form of human interaction study, you NEED it. Failing that, you'd be a good candidate for helping with Samsung's El Bizarro designs.
Wow, what a messy, unrealistic concept.
You need to move your thinking forward.
Just because an area CAN display image on it's surface, does not mean it HAS to be displaying an image all the time.
Think of a device, like the one pictured (which we know is not real) but the WHOLE front is screen.
Then, you can have full control over which areas of this whole surface displays images and which areas respond to touch input at any given time.
There is no reason why the concept of a "Soft Bezel" can not be the norm in the future, where such a device, which will be some form of OLED, hence Black really is black and uses zero power when it's black. You simply "Display" a border around the edge of the screen and do not detect finger touches during this time.
You then have, in effect a bezel, exactly as you have now.
The only different being, it's not set in stone.
Perhaps if you wanted to play a game, or watch a movie, and were not holding the device in a certain way, or it was on a table/stand, THEN the active area can expand out to cover the entire front of the device.
As I say, re-think it for a moment.
Total screen cover give you full control to do anything.
You are elderly want a large bezel, you can have a large bezel.
Want to hold it by it's edges, like a photograph without touching the front, you could have a very narrow or zero bezel.
I'd love this, as it allows the maker or user to have full control.
Not a physical screen stuck in the middle of a physical bezel like now.