Google has recently published the Android 5.0.2 Lollipop factory images for the Nexus 10 and Nexus 7 (2013) Wi-Fi. Since the factory images have been pushed, an OTA update is certain to be roughly the bend.
The specific version for Android 5.0.2 lollipop is LRX22G, the same version already sent a month back for the Nexus 7 (2012). You can feel free to hit up the below links to download and flash the lollipop factory images in case you just can hardly wait for the OTA update to get there. This factory image is raw Android Lollipop 5.0.2 version without the custom UI skin from the respective manufacturers on Nexus devices.