Kanadian carrier Telus - or more precise its community manager "A_Kron" - posted short schedule of upcoming software updates.
And we can see there Android N Update August 22 for Huawei Nexus 6P and LG Nexus 5X. That's on this Monday!
This early update is little striking but understandable - LG V20 should be launched somewhere next month as first model with Android 7.0, new Nexuses will be released shortly after so it's logic that Google want to give updates as fast as possible.
Bonus: Evan Blass informed some time ago that Nexus 5 will not be updated to Android 7.0 - it seams that his info wasn't that accurate.
Source: Android Police