The launch of the GeForce RTX 3070 Ti 16 GB remains on the cards after months of delays. The RTX 3070 Ti 16 GB may be even less of an upgrade from the RTX 3070 Ti than the RTX 3080 12 GB is from the original RTX 3080, though.
https://www.notebookcheck.net/NVIDIA-GeForce-RTX-3070-Ti-16-GB-launch-seems-back-on-as-ASUS-and-Gigabyte-register-new-SKUs.592835.0.html