Evleaks posted the image as "Nokia Lumia 1520, 2013", but it's unclear what's happening to all of the Nokia phones that were in the works now that Microsoft bought the company's hardware division.
As for the phone itself, it looks like a typical Lumia phone with two details that beat mentioning. One is the extra rows of Live Tiles that you can fit on the screen—one extra medium size, or two extra small-sized tiles—and the other is the seemingly raised camera module on the rear. Since the 1520 would presumably have more body room to work with than a smaller phone, it's possible that that implies a PureView camera that is close to (if not exactly) what we see in the 1020, which is awesome. Or it could not. Or it could, but we'll never see this in the real world now. [Twitter]