I know it makes very little actual sense but there's little arguing with demonstrated reality. There's a dedicated section of the market who buy these things. Don't ask me why.
The 8k is just some sort of silly marketing attempt to differentiate the 3090 from the 3080. The huge 3090 die will sell very well indeed for deep learning workstations etc, even if it has to be as a Pro card, so NV are happily covered.
This is where people start getting a bit ahead of themselves. Zen was resulted from a huge, multi year, investment while Intel ran into endless process trouble. Here, they've had one years work since the 5700/XT, only mild process improvements, and they've had to jam ray tracing into the cards while they're at it - as Turing showed that isn't free.
Vs a half decent die shrink & new architecture, you would, a priori, have expected them to drop back from last years position.
Perhaps they've done well enough to hold the line, perhaps a bit better, perhaps slightly worse. Honestly that isn't critical here.
What's critical is that they do a fast, organised, refresh of their entire GPU stack. Ideally competitive mobile GPU's into the bargain. That'll show that they've got/are putting in the resources to take it fully seriously. Frankly its been far too long since they've been able to do this.
If they're doing that then, yes, we'll have a rather competitive market again.