RE:Rift S and ValveValve headset might be a big deal, especially if they finally decide to count to 3 and we get Portal 3, Left for Dead 3 and Half-Life 3.....will be a no brainer that it will sell at least as well as PSVR did (million units or so).
The worrisome part is I don't see any cable or tether on the leaked models, that said, there have been a couple other headsets displayed without tether but actually has one. Guess we have to wait and see but if it is tethered it is almost definitely S7 enabled (might even offer VirtualLink support)