It looks as though the Google Editions of the Galaxy S 4 and HTC One will have an updated camera interface to that of the current stock Android phones on the market. The application features quick access to HDR when you press and hold on the screen, and the volume rocker can be used as a shutter key. “More options” presents all of the advanced options in the same semi-circle (seen above).
Good news is that if you’d like to try out the new camera for yourself, (complete with panorama features if your device doesn’t have it) the APK is available from the source link below. Just remember to disable your default camera first.