This system dump is based on test firmware I9500XXUAMCH, and brings demonstration videos, the S Voice APK, as well as the wallpapers and ringtones. Of course this will be of most use to developers and not so much to the common user.
System Dump Details:
Android Version: 4.2.2 – JDQ39
Build Date: 23 March 2013
Download full system dump (Size: 1549.8 MB)
Download Samsung Galaxy S4 Ringtones only (Size: 11.8 MB)