Until yesterday, Moto Guzzi's US website listed BOTH the regular V7 Racer and the "special edition" green-tank V7 Racer. Now it shows only the latter.
I have no inside knowledge, but I suspect Moto Guzzi USA is preparing to introduce the new V7 II Racer (and V7 II Special) very soon. Any left-over V7 Racers will probably get the new green tank so they can be sold as special editions. (At least, that is what I would do if I were in charge.)