Most people won't know it, but the U.S. military has plans for a new cruise missile, as well as replacement for Hellfire missile. With thousands of cruise missiles in the inventory, they will have enough by the time the new one comes out in production. Think about it, we haven't used the missiles in years since fighting in Iraq and Afghanistan during the early stages of the war and had no reason to use it during the insurgencies. If another country wants to face the wraith of thousands of cruise missiles along with thousands more shorter range cruise missiles, be my guess.
Most likely based on JASSM design both exterior and interior. Stealth features as well as radar avoidance, ability to navigate even with jamming or no GPS signals or communications during flight while finding its target. And of course longer range.
I mean look at the old cruise missile compare to the newer versions of cruise missile but shorter range.