https://www.roadtovr.com/valve-index-vr-headset-release-date/Certainly looks like a step in the right direction, as it retains both support for physical IPD adjustment (not just software) and external tracking (but also having support for inside out tracking). Who knows what the headset is going to cost or if it's going to be released in may (hopefully with some games + the knuckles controllers) but it certainly got my attention.
This also explains the patent dug up a couple months ago that diagram a two lens solution.