..yeah because they've been so slow to update the Verizon Moto X.

Pretty sure Verizon moto x's 4.4.2 was 3 months after 4.4.2 was released. Way faster than anything else in Verizon, but at the time it was a drag to wait because if the 4.4 exchange issues.
/edit looking back through the news they were all 3-4 months after 4.4.2 came out (4.4.2 came out in December, T-Mobile pushed Feb 11 and version ~10 days later).
Even if 5 weeks from the google+ post is right we're into August almost. Wonder what the x+1 will launch with.