Earlier this month, Motorola announced the list of devices getting Google's newest Android i.e. Android 7.0 Nougat. You can go through full list- Here.
As said earlier by Motorola, the Moto Z and Moto G4 Family will start getting Android 7.0 Nougat update in Quarter 4 and Yes... Seems Motorola has started rolling out Android 7.0 Nougat for Moto G4 Plus Soak testers in Brazil.
The update costs 953MB and is hitting Soak testers of Moto G4 Plus in Brazil.
Thanks Aditya Verma