Oh FFS, really? A bigger display doesn't mean you can do more. You have more real estate but it doesn't somehow mean you have the ability to do more in terms of tasks on an iPhone.
How does anyone know anything that is going to happen with the iPhone?
These people and their need to hold 5+ inches in hands is silly. Apple will produce whatever they produce but frankly, I wonder who has actually tried to pocket a 5.5" phone. I've done it with a 4.7" and it is not comfortable. I can't imagine what it will be like for those skinny little dork hipsters and their little sister's jeans.
I pocketed a 5.5" Note 3 and it was no problem! All you do is place in you back jean pocket or if you wearing a jacket like a suit or sports; inside pocket! I don't know where you pocket your phone but most people do it either in their jacket or back pocket of their pants. Ladies carry it around in their hand.