Motorola has announced that it has begun seeding the Android 5.0.2 Lollipop for the Moto X 2nd Gen AT&T variant.
The announcement was made by Motorola Engineer, Luciano Carvalho on Google+.
The update carries the build number 22.21.34. You can view the release notes for the update at the official support page.
When questioned whether the other variants of the Moto X 2nd Gen will also get the update soon, Carvalho replied positively by using a smiley. He also stated that the Lollipop update for the original Moto X, the 1st gen phone, is being readied, and should be available in the near future.