HTC are currently working on a new flagship device that will be included into the One series. Presumably called the One XXL, the device is being touted to be a direct competitor of the Galaxy Note. The device is actually an upgrade to the One X or the One XL on AT&T.
The device will have some next-gen specs with a quad-core S4 SoC rumored to be the processor in question. The handset will also feature the Adreno 320 GPU and an impressive 2GB of RAM, a standard 720p display and a 8MP rear-camera will also feature on the device. The front-facing camera will be 1.8MP with HD video recording. Rumors are that it will also be equipped with a 802.11 ac which is the next-gen Wi-Fi technology but the image above only mentions the standard WiFi technology.
The One XXL will probably be released in the fall of this year and will provide stiff competition to the Galaxy Note and Galaxy S3.