Android 7.0 Nougat has been out for around 3 weeks and unfortunately both the Nexus 6 and Nexus 9 still do not have any factory or OTA images.
Google has confirmed that the Nexus 6 and Nexus 9 will still receive Android 7.0 Nougat despite many people speculating that it may not arrive at all.
According to Android Police, Google has informed them that the Android 7.0 Nougat rollout for the Nexus 6 and Nexus 9 will begin in a few weeks. They didn’t share why the images had been delayed.
Keep your eyes peeled for the official image, but you can still get a taste of the latest Operating System by registering for the Android N Developer Preview here.