Yeah I'm pretty sure.
I highly doubt Apple would return to a thicker bodied Mac. To them that would be moving backwards, they were quite enthused of their move to the ultra slim bodied iMacs, as if it was some sort of breakthrough.
Granted it was actually worse, because now it isn't user serviceable. And I think the part they forgot is we're looking at the computer from the front. Who cares how thin it is.
Does the thin thing look better sure, I believe it does. But keep it thin and make it user serviceable. Of course they did not want it to be user serviceable.
I'm 100% sure that's a cinema display. I can tell from its back.