After the badges we are working on now we will look into udpating the Country/State badges. First after that the belts will be considered. But we honestly don't have a single idea of how to evolve that. Neither the point system itself or the graphics. It might be that it will be left as is.
My personal viewpoint is that the belts was much more interesting in the start as a Geocacher, because it was easier to level. After receiving a quite high belt-level the badges started to become more and more interesting.