The FCC reveals that the 0P6B120 / The All New HTC One features AT&T-friendly LTE connectivity. This is in line with previous rumors which had it that the M8 would be released by AT&T at some point. A sketch of the new handset was provided by the FCC, this allowing us to see that the device has the same shape as the M8 / All New One that surfaced in the last few days (see here and here).
Unlike Samsung, which will unveil its next-gen flagship smartphone (Galaxy S5) at MWC 2014 next week, HTC will wait until March 25 to officially announce the M8 / All New One. We’re all expecting it to feature Android 4.4 KitKat, on-screen buttons, Sense 6.0 UI, twin-sensor rear camera, quad-core processor, 2GB of RAM, MicroSD card slot, and a 5 inch 1080p display. The smartphone should have three color versions at launch: grey, gold, and silver.
source: FCC (the link is not public at the moment) via Engadget