Hi Andrei, I do not know of any NURBS mesher that will generate only quads output. It's a pretty difficult thing because it involves a much different meshing process than what MoI currently does, instead of focusing on refining surfaces along each of their own surface UV grid it would instead have to follow along trim boundaries and try to offset those trim boundaries from one another and deal with areas where the offsets are colliding into one another.

Your best bet for generating all quads output is to start with a regular exported mesh and take that into a program that has retopology functions. 3D Coat is a good program for doing retopology work, and there is also a program called topogun which is specialized in doing just retopology work.

- Michael