GLSL composing support

I personally love GLSL rendering, and I usually prefer this type of rendering instead of BI… it’s fast and can give nice results. BUT! This type of rendering is not supported by node compositor. Each time I want to render any pass (diff spec DOF etc) I must make new layer with new materials and material node setup…this is little bit annoying.

So the question is:
is there any information about GLSL render composing in future reliases or any addons, which can help handle this problem?