To be fair it is not like the competition is that strong right now. I doubt Navi can change that, maybe what comes after Navi, but as far as Nvidia is concerned I am sure that could probably do a 7nm card that is twice as powerful at the RTX 2080 Ti. (but they don't want to do that)
Geforce sales are tanking but Nvidia could just up and release even better products than the 20/16 series whenever they want. Uh huh.
I'm sure they could, but they would have to cannibalize all the 12nm turing gpu's not sold yet since they have already pushed the price point up as high (or higher) than the market demands will let them.
Yeah and improved RTX performance. I think they will go for higher clocks just like they did with Pascal.
I am interested to see if they double down on the Ray-Tracing cores or not on the next release. If they use the freed up space from the node shrink to slap more Ray tracing and tensor cores on or if they just scale everything up in a uniform manner.