Hi. Recently, Epic Games announced Animation and Rigging Toolkit plugin for Maya. I have contacted them to ask if a Blender version of their plugin is possible. They said they don’t have a timeframe, but with community access to their C++ source code, this might happen sooner than they think it will.
So…is someone interested to develop an A.R.T. version for Blender?
I have also opened a similar thread here http://blenderartists.org/forum/showthread.php?332923-Unreal-Engine-4-A-R-T-plugin-for-Blender