The soak test of Android 4.4.2 for the T-Mobile Moto X is live and hitting participating devices today. The update likely includes the same goodies from the US Cellular update that also started earlier, which means an improved camera and other “general enhancements.” As you probably figured, this is not a major update like you saw from the jump to 4.4 from 4.2.2.
Assuming all goes well with this soak test, the update should push quickly to those outside of the Motorola Feedback Network. Still no word on when the Verizon, Sprint, or AT&T variants will see the update.
Cheers b!