According to the leaked screenshots, Motorola's upcoming Moto G will be featuring a square-shaped fingerprint sensor in the front with raised edges, suggesting that the phone will support a Home button, a similar vertical strip design rear-facing camera to last-gen's Moto G, two dots on top of the rear shooter suggesting that the phone will come with Laser Autofocus.
Unfortunately, there is no word yet on specs, availability, or price tag of the Moto G (4th-Gen).