When Motorola announced its Android 7.0 Nougat update plans back in October this year, the company said that the Moto Z and Moto G (4th Gen) will be getting the update first. And that's precisely what has happened.
While there's no official word on which Motorola phone will get the update next, the Moto X Play running Android Nougat has been spotted on GFXbench, suggesting that the device might get the update soon.
What's worth mentioning here is that while both Moto Z and Moto G (4th Gen) have received Android 7.0 update, the benchmark listing for the Moto X Play reveals Android Nougat version 7.1, meaning the handset is will likely skip the Android 7.0 update.