I think I've read that async compute is a very nice feature for.developers making VR software, but yes we shall see (maybe the 1060 architecture is different from the 1070/80, so that it supports Async compute?). For the Vive though yes HDMI is possible, but just curious if nv can/will fix the broken DP implementation. I can't imagine how they could have missed it.(I know they've 'said' a fix is on the way, but they also 'said' Fermi will have dx12 support so who knows. If it was a simple fix, you'd think they would have fixed it before they released the card.
Async compute is nice for all games, but Nvidia's cards still do well despite their limited implementation. They did improve things with the latest series though.
The DP issue is a question mark. DP works fine in all other ways we know, and it's not even clear if it was Vive or Nvidia who is out of spec to cause the problem, but that doesn't affect your ability to use the Vive, as HDMI works. It's quite easy to have missed it, as Vive just released itself very recently.
As far as I'm concerned, I could care less if Nvidia made it work at this point. It's not needed, but it's always good to not have anything that isn't working.
How much async will affect VR is just a matter of waiting for reviews.