The GSOC projects for this summer have been announced and they include NURBS improvements for Blender.

https://www.google-melange.com/gsoc/project/details/google/gsoc2014/jjoonathan/5757334940811264


I doubt it will replace MoI, but having 3DM import in Blender will hopefully make it easier to bounce back and forth between the two programs. Parts can be modeled in the program that is best suited for them.

Steve S