I know you guys are just trying to come up with stuff, but in the HomePod firmware it has been confirmed that there will be an area for the home button. There is actual code that describes it! The facts (not believe, but facts) are that:
- It resizes
- Indicator can be hidden
- No API to change colour
- Tab bar can extend under it
So no, the power button will not have a double function as that would be terrible. Also 3D touching on a random part of the screen would never work as apps are using 3D Touch (where would you 3D Touch in Mail to get home? Impossible!) You guys are reaching for things while Apple already provided the evidence for you.
The same as above, the HomePod firmware confirms the sides next to the notch is for the status bar:
This is evidence from Apple itself, so not an opinion of how people on a forum want it. By the way, developers have generated a screen based on these values and guess what, it perfectly forms the those spaces next to the notch:
Also, the glyph in the firmware might tell something about their intentions:
If Apple would always want to hide the notch through software and black bezels, why make it so obvious in this glyph? I first was of the idea of symmetry and blacking out parts of the display, but the real evidence is showing that Apple might embrace the notch and use the extended tab bar (so depending on the colour of the app) to show the home button area.