Yeah, there just isn't enough information to go on as to which of the new cards would be a good deal, but I suspect that the pricing scheme will keep them out of the 'ideal' category for a long time. The reviews will be out in another month and they will be worth waiting for. What I find interesting is the way that the CUDA cores, memory addressing scheme, bandwidth, and NVLink have been re-ordered to a different configuration than we have seen previously. The 2070 will not support NVlink. Both the 2080 Ti and the 2080 support it.
"The GeForce RTX NVLink bridge connects two NVLink SLI-ready graphics cards with 50X the transfer bandwidth of previous technologies. This means you can count on super-smooth gameplay at maximum resolutions with ultimate visual fidelity in GeForce RTX 2080 Ti and 2080 graphics cards."
Fifty times? That tells me that the 'slight' improvement that SLI gave 4k resolutions previously will be improved, but how much is anyone's guess. So, I will buy two of the 2080 Ti's, but only after the reviews come out and the drivers are optimized. I just hope the process of switching from NVlink to independent cards is smoother than it was for SLI, as I use three monitors for gaming but five for content creation. Content creation is more important for obvious reasons and NVlink will not help with that, but the second card is a must in order to have enough connectors.
I play many games, but there are only two I really care about right now. One is AH3, and the other will be getting an update in 2020 about the time that the new Nvidia cards (3080's?) will be released. Waiting that long for an upgrade is going to mean the risk of a few cards I am running currently may fail (hardware predictive failure rate being warranty dependent).The RTX promise of real-time ray-tracing probably will not be realized for at least six months, and maybe a year or more, so I'm not worried about that. In fact, I have no problems with waiting for the Quadro versions, or Titan versions for even more power. BUT, I want more power already, so it's going to happen.