It seems like Motorola might be working on the latest version of the Moto X. Few photos of the Moto X (2015) have been leaked that shows a possibility of a fingerprint scanner.
As per the leaked images, the phone has a small square cutout just below the rear camera indicating that it might come with a support for fingerprint scanner. Google announced last month at Google I/O that Android M will add native support for fingerprint scanners, which means we should expect to see fingerprint scanners on all flagship Android phones henceforth. The Moto X is said to include a Quad HD display and a 5.2 or 5.7-inch display and powered by Snapdragon processor with 3 GB of RAM, USB-C.
It must be noted that the possibility of a fingerprint scanner and the specifications are speculations and Motorola is still mum about both. However, it is expected that the new Moto X (2015) will be announced in September this year.