We don't have a changelist yet for the update, although we do have some idea of what it will contain, based on the Sprint and Verizon updates. We should see some changes to BlinkFeed that make it easier to add or remove content from the feature. And restaurant recommendations from Twitter and Foursquare will most likely be added.
There are also changes expected for the Gallery UI, along with changes to the way that widgets and app shortcuts are added to the home screen. Lastly, AT&T customers with the HTC One (M7) should find improved Wi-Fi connectivity after the update, and an Emergency Alert app.
If you're an AT&T member with this handset, keep your eyes peeled next week for a notification that Sense 6 has arrived for your phone.
source: @moversi via AndroidandMe