Some of the folks working on PPI and HoloPortation team from MSR left and went to setup a new company called PerceptiveIO.
They have recently published a paper called Fusion4D: Real0time performance capture of challenging scenes. In that they cover some of the work around multi-view performance capture, the raw depth acquisition and preprocessing that needs to be done around that. This interestingly also handles deformation changes (e.g. taking off a jacket or a scarf) and these can be non-rigid and much more difficult to handle, but they are done beautifully.
Combining this with the likes of HoloLens would make it quite interesting. If you want to see more, check out the video below showing the examples and transitions below. Perhaps one day, it would allow us to see and experience events from afar. 🙂