And a $50-100 price increase.
See iPad Pro.
iPad has always been a bad analogy to the iPhone when it comes to pricing. If you compare the two, the iPad is a smashing good deal.
Lets make it ambiguous for demonstration sake:
Option A: $630, A8 SoC, 2GB RAM, 64GB storage, LTE, 5,124mAh battery
Option B: $750, A8 SoC, 1GB RAM, 64GB storage, LTE, 2,750mAh battery
That's odd, the one that costs more has less ram and a smaller battery? What am I paying for then?
Turns out Option A is the iPad Mini 4 64GB Cellular, and Option B is the iPhone 6 Plus 64GB. Huh, Optional A also has a larger screen. Otherwise, the hardware and software is nearly identical. If anything, there is less in the iPhone, yet it costs more.
Thus, I think the iPhone pricing will stay the same. It's not priced about storage or hardware, it's more about consumer expectations and what the market is willing to pay. If anything, Apple is overdue for a price drop.