Valve Standalone VR Headset Plans?

A new video from VR industry reporter Brad Lynch outlining the trail of clues he followed to piece together details about Valve's efforts at creating a standalone virtual reality headset codenamed "Decker," which will not require an external computer. There's some analysis of this on Ars Technica, where they point out that Valve's history with hardware development should make it apparent that there are no guarantees this project will ever see the light of day. On the other hand, Brad commented on his own video saying more information has already surfaced, and he's planning another video this week to expose more: "I have already found some amazing new information since I released this video. This Friday, I'll do a live Q&A YouTube Stream to talk more about this." Here's a bit of what Ars says it has heard about Valve's VR hardware development:
Sources have previously told Ars Technica that Valve had at least two VR headset design concepts in the works, and in the concept stage, they diverged. During this preproduction phase, one prototype concept more closely resembled the Valve Index in terms of requiring some kind of connection to a PC and the existing SteamVR Tracking Boxes. The other revolved around a built-in processor à la Oculus Quest with aspirations to ditch external tracking boxes and adopt Quest-like "inside-out tracking."

The sources also suggest Valve previously had trouble getting any form of inside-out tracking to match the performance of Oculus Quest, and the company brought on at least one outside firm to work on a competitive option. Such a system's efficiency could very well have changed in the time since Ars heard these reports.