Here what my friend got today from NWA:

1. Gold on BMI to Platinum on NWA:
"fter reviewing the
information provided to us on your Diamond Club account, your Northwest
WorldPerks account has been upgraded to Platinum Elite status. This
one-time complimentary membership upgrade will remain valid through
February 28, 2009."

2. Good through 2009:
"Due to the timing of your 2008 complimentary Platinum Elite upgrade,
please be advised that your Platinum Elite membership will be continued
through the 2008 program year - March 1, 2009 through February 28, 2010.
You may expect your credentials for this program to be delivered prior
to March 1, 2009 to the address on file."