NEXUS 6 OTA Question topic

Hello XDA, I recently rooted / unlocked my N6. I used WugFresh NRT to do so. However, I did not like the process of rooting so I (using NRT) flashed stock + unrooted and then factory reset followed by an OEM lock. Reading about lollipops new way of OTA, can I perform OTAs? Or is it too late?

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