I've been working on a new workbench, called Render, which is aimed at replacing the Raytracing WB with one that is easier to extend and modify
Currently it supports both the engines of Raytracing, PovRay and LuxRender, plus a new one, Appleseed. It is very easy to add new ones now, so let's hope the list will grow bigger.
Also, this one should be much easier to extend, add new renderers and add new features that more advanced renders support, such as for ex. specifying/setting an HDR image for lighting, or adding some GUI stuff to edit the lights configuration, etc.
I'll try to produce some nice-looking images with it in the coming days that I'll post here.