Recent reports in this thread suggest that your status with NW will be good thru the 2009 program year if you do it now.
Originally Posted by
CPMaverick
If anyone has recently matched to NW, how long did your status last for, and when did you match? I would like to match, as I have some NW flights upcoming. However, if it is best to wait until 2009 I will (if my status will last all year)