The project has been delayed due to overload on the editorial team.
Appreciated - same with everyones workload nowadays...
In reality, the quest for "the overall lowest power consuming set-up" is really not what the article meant to be about. Yeah, we'll certainly cover that to some degree, but.... Anyone who has studied SPCR reviews can assemble a low power system, and almost any reasonable combination of components from the last.... 5 years of PC technology can run WHS. IE, a Pentium 3 1ghz will probably do it fine with a 250W 80+ PSU.
I that isn't the purpose of the article then I'll look elsewhere as I already know how good the OS itself is.