Come on! When a phone reaches this kind of slimness, the design is going to took the same , only thing that'll change is may be the corners will be more rounded and the back will be different.. U see every phone out there, will have a similar design to each other, just changing the backs of the phone, or the camera shifting from left to middle or getting bigger.. Changing the design on such a device requires a huge amount of time as it's, honestly, impossible.. U can only go that much and make changes to the edges and depth of the phone..
What design change do you want?
Impossible?
What design change might we want? I don't know, but here are a few ideas.