Yes - I talked with an owner at a large dealer yesterday who confirmed these are promotions and not changes to the future list pricing. The price will go up again on most cameras and lenses when the rebates end. Also remember that Nikon strictly prohibits dealers from promoting or selling below list price. No dealer is going to risk violating that restriction.
From an accounting standpoint, this strongly encourages dealers to order merchandise - and dealers want to move it. It's a different decision for a dealer that is nearly sold out of their V1 stock or other models that are being discontinued. The dealer I spoke to is marketing the D600 but not the V1.