Original Motorola Moto X to get all features from the second generation model that are not hardware related
The OG Motorola Moto X will receive the new Moto Voice features which will give users the ability to change the phrase that starts voice control. Some suggestions offered by Motorola include, "Ok Moto X," "Listen up, Moto X," and "Hello There Moto X". You might even try a well worn phrase like "Watcha talkin' about, Moto?"
After you decide what phrase you will use, look for the Moto app among your list of installed apps. Open it, click on voice, and follow the directions. Before you know it, you'll have your OG Moto X trained to open voice control with your own catchphrase.
One last note. Carvalho said on his Google+ page that Motorola has been conducting regional soak tests of Android 5.0.2. As he put it, "That's a limited soak test roll out for some of our products in different regions of the world. The update will be pushed to a wider audience if no critical showstoppers are found by users who already received it."
source: +LucianoCarvalho via AndroidGuys