A few generations back I recall a time where gpus were released and there was disparity between cuda cores between skus. Later on Nvidia filled those skus with Ti variants leaving those who bought 1070, for example, to buy 1070 ti just to get the performance they should have had from the beginning. So I created this chart to keep track of this.
I see the same thing with vram. There is a disparity between 8/10GB vram and 24GB vram. And the notion that there won't be more vram added using existing skus simply comes off as impossible. Again, those with a 3070 re-buying 3070 just to get the vram they should have gotten from the beginning.
Sure, I'm speculating. However, I'm only speculating based on what Nvidia has done in the past.