Was looking at this post here
Google Nexus 5 (2015) Known As Nexus 5X Might Turn Out To Be A Killer Device - Neurogadget.com
Its says not confirmed bht if thats seriously close to the specs it dont seem all that great
I get this was translated, but it's tough to put much stock in such a horrifically written article.
But let's play along for discussion's sake and assume it's true, the 808 processor, 3GB RAM (2 has been mentioned also), 13MP camera, 1080p, 2700 mAh battery, 16/32GB, with NFC, USB-C (hopefully 3.1, 2.0 would be a disappointment) and fingerprint sensor has been pretty consistent with most leaks thus far.
And the author is plain out wrong, no way Google would charge an additional $100 for the extra 16GB.
The main feature with the LG Nexus though is on the software side. Non developers are buying it for 6.0, quick updates, stock Android and hopefully a reasonable price.