Do not expect anything groundbreaking to accompany this particular update, taking into consideration how it happens to deliver a small number of bug fixes as well as (fingers crossed) performance improvements to the mix. Nexus devices have already picked up this update, and with the same happening to the Moto G Google Play edition, this might be the watershed moment that other Google Play edition devices, too, are well on their way to picking up a similar update.
The entire update will weigh in at 380MB with build designation LRX21Z, and while it remains a wee bit older compared to the Nexus build, just about everything else contained within remains the same.