In light of the color pipeline bug and taking into account that too many times we resort to hacking features on exporters rather than supporting them on the core engine, I think it would be great to make again yafaray stand-alone versions of each release as we did in the past. They can be used as a test bench for features later supported by every exporter which are ATM Blender, Edifius, P-con Planner and Wings 3D. That would also mean that we make YafaRay a less Blender-centric app. and we keep a better eye on XML maintenance and improvements and people could benefit from faster render times by rendering on command line.
In current Blender addons, yafaray-xml feature is pretty much residual and lacks maintenance too. On Linux it does not respond to commands and on Windows it won't start without a registry key which the addon does not install anyway.
I also think the best course of action would be releasing always standalone first for betatesting and then releasing addons.