Not sure if its replicated (or if replicating it would even be possible), but the replica Summicron looks like it has single coating to me (assuming my eyes aren't tricking me, of course). So in that sense, it is closer to the original than even the reissue Nikon lenses, which are multicoated.
As I mentioned above, these photos are exactly as they came out of my Coolscan 5000 scanner, and other than cropping the borders I haven't adjusted them in any way. Some minor tweaks would change the impression of sharpness considerably. My impression from the images is that the replica performs pretty much as I'd expect a quality lens from the 1950s to perform. IMO the W-Nikkor and the replica Summicron are surprisingly similar in their rendering. A true replica lens.