DigiTimes reaffirms Coffee Lake-S in late August, this is their third article mentioning the earlier than expect launch:
http://www.digitimes.com/news/a20170518PD204.html
Just something from my hw news experience: these articles usually don't mean "reaffirmation". They just refer to teh particular subject as a piece of information that is "known" from before, but the actual "ground" behind it doesn't change, it is still based only on the original article it was first reported in.
Basically, once you report on something like that, you can refer to it in your next news items (unless it gets disproven by a new conflicting report), but this is just repeating, not "new information". Repeating something doesn't reaffirm it. When analysing this stuff you should always split the news text into the parts that report what is supposed to be the actual new, added information ("scoop"), and what is just background taken from the "general pool of current knowledge".
People often make this mistake - particularly when they see reposts and reports of sites B, C, D, E that draw from previous publications by site A (or indirectly through other reports by F, G, H...), and don't realize that it is just repeating of the same instance of the information. The kernel of new information naturally can't grow or get "stronger" via such reposts, because the reposters don't know the things the original source knew (although good deduction can guess things the original poster failed to guess from his info). Often such reposts can appear quite late, which makes it easier to get fooled, but of course you have to keep sharp about that.
Anyway, that was just a methodical bit, the actual bit of Coffee Lake launch in August is probably very very likely to be true. It was posted by BenchLife.info after all IIRC, which is a great source?