I'm hoping it will, but this is one of those things we won't know until it launches and someone does a side by side comparison.
I'm hoping for a lot of little hardware and software tweaks here and there that Apple wouldn't bother announcing. For example, the Bluetooth stack on iPhones has always been problematic. My custom-installed bluetooth speakerphone in my car doesn't work real well with it, for example, and my installer says this is common with iPhones since they modified the stack to remove voice dialing, etc. Now with these features back in, and perhaps a better bluetooth chip, perhaps it will work like any other phone. One can hope.