Originally Posted by shri_chanakya
Wait for the code drop to happen. Should not take long.
Sent from my Nexus 5 using XDA Free mobile app
Unless Google drops source earlier than normal (read: typically not until a few days after the first OTAs go out to Nexus devices), I wouldn't expect work to even start until November. (Since it sounds like the earliest OTAs and devices shipping are going to be November 3, which means that's the earliest possible date to even think about doing work unless Google drops source earlier than they ever have in the history of Android.)