https://www.cnet.com/news/microsoft-appears-to-tease-hololens-2-in-trippy-video-ahead-of-rumored-mwc-launch/

Microsoft was already rumored to announce a new HoloLens headset at its Mobile World Congress event on Feb. 24. CEO Satya Nadella is scheduled give the keynote along Julia White, a corporate VP in charge of Microsoft Azure, and Kipman.

The original HoloLens AR headset was released in 2016, layering hologram-like 3D graphics onto the real world in a stand-alone package, but has some technical limits. The next headset may improve things like field of view and bring more advanced controls, as well as eye-tracking.  In November, Microsoft won a $480 million contract to supply the US Army with HoloLens headsets.