The source of the leak was from EvLeaks, who has been known to leak Android info in the past and whose information is often correct. The image was originally posted to Flickr listed as the “HTC One” within its EXIF data, which if you had any doubts of its name change in the past, that little nugget should convince you without any hesitation.
We caught a glimpse of the HTC One’s housing a few weeks ago and both the leaked housing and the render leaked today seem showcase the same device. Although today’s leak also offers a glimpse into the device’s Sense 5.0 as it looks like it’ll have more of a grid-style interface.