My take as a Camera App Dev:
NONE of this Next-Gen Camera stuff matters to 99% of those who own an iPhone !
IMO, ONLY "Under Glass TouchID" has a chance to move the needle !
Meaning, it is the ONE & ONLY product attribute that could spur an increase in iPhone Unit Sales.
Apple would be wise to limit the fancy Camera stuff, & instead, offer more-reasonably-priced iPhones moving forward.
BTW, I did a Deep Dive into the 48 Mpx image sensors about six months back; my conclusion back then is the same as it is now, Higher-Res Pixel Binning solutions is NOT the way to go !
Would prefer Apple R&D stick with 12 Mpx image sensors & focus on improving image sensor Read Noise instead, which is the BIG industry challenge !
If they did that, they could go to 12-bit color (at speed) !
Simply put, 12 Mpx with 12-bit color depth, & with a max capture rate of 60 fps, should be their primary goal !
Much less expensive solution, & better too !