Look at the iPhone 4S, it easily outsold the iPhone 4. Physically they look the same. So your wager is correct, but doesn't prove anything other than what we already know. Apple tested the market by coasting & duplicating the same style of the 4, then hung an "S" on the end. The public will settle for nearly anything from Apple. The only thing they proved was the strength of their marketing hype.
By pushing out the same old look this time around, but just a few mm longer, once again the public will buy it in record numbers. It's Apple and that's the way it is, until the day it begins to fade.
That's when you'll see a new design, yet by then it may be too late. Nothing bad will happen because certain people will buy absolutely anything. Thus Apple will end up being second & still enjoying massive profits. With high gross margins Apples the fat cat for some time to come.