Sony Xperia Z3+ is expected to receive the Android 6.0 Marshmallow update in February, as a Canadian hints a new schedule of release for its devices. The update will come out with a bunch of improvements.
Samsung Galaxy J5 is reported bound for the Android 6.0 Marshmallow update in February along with a few other devices. The upgrade comes with a bunch of new features. More details here.
Motorola Moto X Play is slated to receive the Android 6.0 Marshmallow before January ends, as its pals, Moto X Pure Edition (2015) and Moto G (2015), have already received the update. More details here.