Exoside (Maxime Rouca) has recently released Quad Remesher — a new automatic retopology plugin for 3ds Max, Maya, and Modo.
The tool is said to process source meshes composed of triangles or a mixture of polygon types (sculpts or raw scan data) and convert them to evenly spaced quads suitable for animation.
QuadRemesher automatically converts source geometry into clean all-quad meshes with a user-specified target polygon count. Also, the tool can be set to generate evenly sized quads or set quad size to vary with surface curvature. You can control quad sized manually by painting vertex colors.
The flow of edges in the new topology is said to be controlled by material boundaries, smoothing groups or surface normals.
A perpetual license would cost you $109.90, and the rental would cost $15.99/quarte (available at a discount until the end of 2019). You can learn more and get it here.