Why does it matter if as Lloydbm41 explained, Android 6.0 has support baked in for apps to be loaded onto external storage? Wouldn't it in all likelihood be cheaper to be able to up the storage yourself with a large microSD card?
Having no camera hump would be fantastic. The return of external storage would please a great many, most existing here on forums like these I'd wager
since most regular consumers likely don't really care. Adding an equivalent to 3D Touch just shows Samsung unabashedly doesn't care anymore if they are perceived as copying Apple and I doubt it would be a relevant feature. It still hasn't proven to be a breakaway hit on iOS and imagine what it'll be like trying to get 3rd party devs to support it. Support for Android apps all to often takes second fiddle to iOS, and that's for apps that'll work across ALL Android devices, not just a couple Samsung phones. And let's face it, software integration isn't exactly Samsung's forte.
I agree with jamezr--improve battery life and make a serious effort to optimize your software and you have a winner.