Cyanogenmod no longer supports CDMA Galaxy Nexus devices (This means the Sprint and Verizon variant of the Galaxy Nexus). The drop in support is mainly because of the lack of documentation and driver updates for the chipset this in combination with the lack of resources, the team has decided to completely drop support for the CDMA version, but not the GSM variant
The CDMA variant of the Galaxy Nexus was always “the second” and never treated as well as its GSM brother with OTA coming out months later, the difference between a CDMA and GSM device is the technology used, both are different radio systems used in cell phones with Sprint and Verizon using CDMA and AT&T and T-Mobile using GSM
Like mentioned previously, the GSM version will still be supported but don’t expect any mayor updates to come out for the device.