Never-before-seen HoloLens headset makes appearance in NASA video

[Windows Central]

NASA appears to have hands on an unreleased HoloLens headset... but what could it be?
A recent video from NASA has given us a look at a HoloLens headset with a design that hasn't been seen before, which has raised suspicions as to whether or not this is our first look at the next HoloLens. Featuring a somewhat slimmer design, this new HoloLens headset looks similar to the original HoloLens, but with a less bulky front.

Full story from the WindowsCentral blog...