https://techcrunch.com/2019/02/11/microsoft-video-teases-hololens-2-ahead-of-mwc-launch/

One of Mobile World Congress’s most anticipated reveals isn’t a phone at all. Microsoft is expected to announce the next generation HoloLens headset at an already-announced event on February 24, and the company’s doing a bit more to stoke the flames.

Granted, there’s really not much to see in this new teaser. Vague forms of chips and cables take shape out melted ice, rocks and air— frankly, it’s the kind of thing you release when you don’t actually want to show anything off.