http://www.techradar.com/news/moto-g4-plus-will-get-android-oreo-despite-what-you-may-have-heard

Some Moto G4 Plus owners were upset when the originally promised news of an upgrade to Android Oreo disappeared from Motorola's marketing and it was suggested the budget handset wouldn't ever be upgraded to Android 8.

Now, however, Motorola has confirmed it will be updating the Moto G4 Plus to Android O in the future to make up for any confusion.