A new Moto Mod which is said to be the sum of a partnership between Motorola and AT&T has now come to light, currently going by the 'AT&T Mobile TV Cast' name. This information, along with the image of the new Mod (shown below) were obtained by Android Authority. While this is understood to be an AT&T endorsed Mod, it seems as though it is more designed to promote the company's DIRECTV NOW service, rather than the company's wireless service. So it presumably will be a Mod that works regardless of whether the owner of a Moto Mod-compatible device is an AT&T customer. Although they will of course have to be a DIRECTV NOW customer.
As what the Mod essentially does is allow the device to cast DIRECTV NOW to a TV. What's more, is that the information suggests the Mod will come with a USB dongle type of device that connects to the TV acting as the gateway to the service. On initial impressions, this does not seem to be a feature that is vastly different to Casting from within an app (like the DIRECTV NOW app for example), although it is understood that the dongle and Mod combo will not require an internet connection to function. Which although is a selling point in its own right, does likely mean that it will be eating up mobile data allowances when in use. Which could be where the benefit of being an AT&T customer specifically will come in. It is also not quite clear whether in spite of not needing a Wi-Fi connection, it will be able to make use of a Wi-Fi connection if wanted. As this would then be of benefit to those who do not own a Chromecast, Android TV device, or a TV with Cast-receiving features included.
As an additional feature though, it is also suggested that the case will come with a 2,730 mAh battery capacity. Therefore, in addition to facilitating the casting of DIRECTV NOW, the Mod will also presumably act as a power bank, either for the Moto device itself, devices connected to it, or possibly even the USB stick which comes included in the package. At present, there are no firm details on how much this Mod will cost, or for that matter, when it will become available.