Anyone considering entering step-up now should probably wait a month or two before buying a card to gain step-up access. NVIDIA historically announces new GPU around September. I'm not sure what the grace period is on buying a card for step-up, I think it's 3months prior to the release date (or step-up release date) of the card. I haven't been checking rumors, but a SUPER refresh is probably on its way from NVIDIA sometime soonish. Maybe they will try to make the TI last another year, but I doubt it. I'm sure there is a lot of info. they learned from being their first time on Samsung 8nm and they want to do a refresh at the very least to improve upon their yields.
If I was in the market for a GPU today, I would wait until Oct. for announcements before purchasing tbh. Depends how much you are going through AAA gaming withdrawals