We will soon see what this Windows update is about - but I seriously doubt that there exists any relationship.
If you mean the relationship between NSA and the vulnerability, then no, there actually is: it was NSA who discovered the vulnerability and it has not been used in the wild (according to NSA themselves; source: https://twitter.com/briankrebs/status/1217082363391377408)
"we lost the backdoor key and its in the wild" constitutes the NSA "discovering" and "informing" MS.