CyanogenMod developers will not support Galaxy S4
 

"With the Samsung Galaxy S4 presumably coming soon, many are excited about the possibility of running a more stock Android-based experience, like CyanogenMod, on the hardware. It looks like that's going to be a slower transition than many were hoping, as the current Samsung CM maintainers have said that they have no plans to support the device." If you like custom ROMs, don't buy Samsung. As simple as that.

http://osnews.com/story/26873/Cyanog...port_Galaxy_S4