The source included some build details as well. Allegedly, the Moto X+1 boasts an aluminum frame, and the back panels could be built of wood, plastic, leather, denim, and even carbon fiber. We've already seen the wood and leather back models and, reportedly, the carbon fiber option is a Verizon exclusive scheduled for the upcoming months.
For all we know, the Moto X+1 could be revealed on September 4, with the phone possibly coming to Verizon two weeks later, on September 17. If that's true, then we'll learn all there is to know about the Moto X's sucessor pretty soon!
source: TK Tech News