Over the past couple of months, there have been quite some rumors about new models on NVIDIA's roadmap. However, as you are probably well aware, the supply of existing GPUs is far from enough to meet demand. It's a problem that's been hitting the entire video card industry, as well as various other product categories. Based on comments from AMD and NVIDIA, the situation isn't expected to ease until the second half of this year.
Rather than dispersing the limited chip supply over even more SKUs, it seems NVIDIA has decided to delay the RTX 3080 Ti and possible SUPER derivatives of existing SKUs indefinitely. The only new card that will hit the market in the near future is the GeForce RTX 3060.