The CyanongenMod team have announced that they have starting working on CyanogenMod 10.2, the new version of CyanogenMod is based on the newly released Android 4.2 Jelly Bean.
4.3 Status Update #1
All AOSP repositories have been merged into our Github and branched to “cm-10.2”. Do not build it yet. There are a multitude of build errors that we are working through. We will put up another status update when everything has settled down.
There are no details as yet on when CynogenMod 10.2 will be available, you can find out more details over at Google+.
Source Android Community