NSV is based on the Nybble USV, crudely it is the parts of the Nybble needed for movement and control crammed into a missile body with a warhead on top. NSV will have it's first launch atop a Gale-III launcher later this year. Meanwhile the latest Gale-III build, Build 21, was an ICBM test but it did also debut modified engines with a lower IR signature.
As for the space drone Nybble it has now been fitted with a new engine ready for the first superluminal test next month.