Out of the blue Google has dropped the link for the factory image for 5.0.2 onto the Nexus factory images web page meaning an OTA can’t be too far away. Interestingly, at the same time they have removed the link for 5.0.1 which is unusual as normally all links remain on there. There must have been a critical bug for Google to remove 5.0.1.
For those of you who are too impatient to wait for the OTA you can download the factory image with the build designation LRX22G and install the factory image yourself. As yet there is no changelog published so if you would like to be our guinea pig please do and let us know the changes in the new build.