They typically roll OTA updates out in waves, so not everyone receives them at the exact same time. If I recall right, this started rolling out on the 25th. If you have not made any changes to your device (root, unlocked bootloader, custom recovery, etc) then it should arrive "soon" (meaning varies, sorry I can't be more specific).
On some devices you can try to force the update by clearing data and force stopping their Google Services Framework, however I have not heard if this works on the One and I do recall it creating some Play Store bugs (easily fixed, but still annoying) in recent months on other devices. So the trade off there might not be worth it.