More rumours pointing to a September 29th Announcement and potential release.
Said to start at $400 (Which could be for the base 16GB, If AndroidPolice is correct)
To be potentially know as Nexus 5X
http://www.androidauthority.com/lg-nexus-5x-release-price-leak-639306/
The price seems a bit high but I'm getting the impression that the days of bargain priced Nexus hardware were just a blip on the first couple of devices. I guess maybe Google don't want to upset the other Android phone/tablet manufacturers by releasing a device that makes their models look expensive.
I'm still keen though as native Android is the way to go IMO.
