I think valve invested so much they are trying to milk the Prosumer market rather than accomedate the entry level market or even somewhere in between so I have no faith for this reveal but I'm open to them surprising me with a 6dof, inside out tracking with a wirless sensor for room scale in a standalone device with a good price tag and support for less demanding Vive games.
...Obviously I don't see this happening.
I'd be pleasantly surprised if it ends up being inside out tracking. Definitely won't be standalone. I'm expecting something similar to Vive Pro, hopefully without a pro price...