If you have enrolled in the Motorola Feedback Network you might get lucky to test Android N beta on your Moto Z play. However, it seems that this is only for a few users that are enrolled in the Motorola Feedback Network.
Motorola has confirmed that Nougat would be coming to the unlocked Moto Z Devices Lineup in February and it seems that the Moto Z Play is getting ready for it.
If you are a permanent subscriber of yournexttech.com you might well know that the Z Play Nougat source code were out already.
Firmware version NPN25.137-15-2 and currently hitting units in Europe, the update brings Android OS version 7.0.
The build no.for Spain remains same too, as NPN25.137-15-2, and looks like stable update, but given what we heard earlier, it could be the soak test update.
You may want to check for it manually from the Settings » About phone » System updates-section on your device.
Earlier this month, Motorola had promised us to deliver the Moto Z Play Nougat updateby the end of month, and it seems like the company has stayed true to its promise