Microsoft is scheduled to hold a major press conference at MWC Barcelona later today. With Satya Nadella and Alex Kipman in attendance, the expectation has long been that the company would use the event to show off the next version of its HoloLens mixed reality headset. Just hours before the event, though, Twitter user WalkingCat spoiled at least some of the surprise by leaking four images of the new device. These are the first images of the new HoloLens we’ve seen.