Is there any evidence of a Super 2080TI? All the leaks I've seen are 2060/2070/2080 only. It's entirely possible they won't do a Super 2080TI and instead will do a new Titan at a later date based on Ampere or just save an updated 2080TI for later depending on what their 2020 launch schedule looks like.
The 2080TI is far away from being threatened by any AMD card so theres really no reason to update it anytime soon, honestly.
The only real reason they would need to is if the new RTX 2080 Super got too close to its performance.