Looks like Nvidia is not going to release any other RTX 3000 versions besides the Ti ones this year. Rumor has it that Team Green should release 7 nm RTX 3000 Super variants for laptops with more CUDA cores but same VRAM configurations in early 2022, while the desktop variants could arrive a few months after.
https://www.notebookcheck.net/Nvidia-RTX-3000-Super-laptop-GPUs-rumored-to-launch-early-next-year.549376.0.html