Hi Rocky,
I had sent a case specific enquiry to ND about 2 months back, and I sent another one recently which they replied to (2 weeks response time in both cases). Both times the response was identical, saying that if the time set out in your AOR letter has been exceeded, then it indicates that further processing or coordination with external agencies is required, and the original timeframe has been exceeded. Not very helpful, but at least its still in process.
No other option but to just wait. I think some of us will only hear back next year and its hard to say whether the delay is random, or something specific in our applications, or security/credential verification etc.
Have you sent case specific enquiry Rocky?