Depends entirely on price. I can probably get £350 for the 3080 so if price is <£800, I could be tempted if it is offering 4080 perf. but as it is, there aren't any games where I feel the need to upgrade still and by the time we have got more consistently demanding games, 50xx will be close to release.
Only took out geforce now for 1 month for cp 2077 and PT. Was considering it for AW 2 but it ended up running pretty well and avatar runs like a dream, that and I'm not paying for the new min 6 months subscription.
That's you off Jensen's Christmas card list.