That's right, folks. False alarm. Do you remember that report which the GA of the PCA overwhelmingly adopted back in 2007 which roundly condemned the theological positions of the Federal Vision? Well we do, and as it turns out, nobody actually is Federal Vision.
Funny story... Turns out it was all just a big hoax. We apparently imagined/invented bogeymen who reject the bi-covenantal nature of the Westminster standards. We apparently imagined that there are people teaching that one is "elect" by virtue of being a member of the church. We apparently imagined that there are men out there teaching that union with Christ makes imputation redundant. The GA apparently made up a group of people who teach that baptism effects a "covenantal union" with Christ and that one can be united with Christ while not receiving all of the benefits which belong to Christ.
Given the fact that in the last few months, three teaching elders whose teachings fit well within the range of what the 2007 report defined as Federal Vision have all been exonerated, we can, I think, safely assume that this was an imagined threat, on par with those snipes that the older boy scouts made me chase in the dark when I was 12.