My research (so far) has resulted in my learning the following.
First, the tire will not be available until 2016.
Second, the V720 is not related to the V710 (which is a shame because the 710 was amazing).
Third, the V720 is more closely related to the Excsta XS, which is not a bad thing but more comparable to an NT05, also not a bad thing, but neither is close to the V710.
Fourth, there is a V720 sold in Japan now but it has a different tread patternthan the U.S. version will have and is also a different compound.
I hope this helps.