We are expecting CyanogenMod 10.2 official nigthlies to start building soon. But in case you need to play with Android 4.3 on your AT&T and T-Mobile HTC One you can still do so by using these unofficial builds.
Unofficial CyanogenMod 10.2 build for AT&T HTC One
Unofficial CyanogenMod 10.2 build for T-Mobile HTC One
The only issue you may find in these builds is that bluetooth does not work and you cannot send sms/mms. These bugs though have been figured out and should be fixed soon, maybe as soon as tomorrow.