The deal is for both 990 and 970 owners and is for the first six months that the 997 is shipping.

If we assume that a "977" (or whatever name it might get) is hiding in the pipeline behind the 997, 990 and 970 owners who pass on the 997 would have the same $200 discount available for the first six months that unit is shipping. The catch there is that we don't know when such a unit might appear...