Oh no! Sadness!
After remembering that it was on its way to Steam this month, I went to go request King Arthur's Gold Steam keys from the official King Arthur's Gold website but was turned away at the door. After a bit of digging around on the blog (side note: the release notes should really be separated from the news!)I found this blog post from a couple weeks back saying that it had been delayed. The second target of last week was also missed. Hopefully it's not a bad sign and we'll still see King Arthur's Gold on Steam!