HTC M7 purportedly spied brandishing Sense 5.0@ 2013/01/21
Before we declare this a preview of what we'll see in Barcelona, though, we'd do well to point out some of the more glaring uncertainties beyond just the lack of internal hardware details. The capacitive buttons sit unusually high on the front, for one. There's also none of the usual regulatory markings on the back -- even if authentic, this may be a prototype that doesn't reflect the final result. Whether it's the real thing or just wishful thinking, we may find out in a little over a month's time.
Update: It is worth pointing out that the time, weather and the length of the black bar over the location name in the widget suggest this device was spied in Taipei, the home of HTC. Unless, of course, this was a carefully calculated hoax.