I think I've decided to replay CP77 after the expansion hits. New sex, new lifepath, will make different major choices (a good amount I regretted my mostly blind first playthrough), new romance, new ending, new build (I'll miss my stealth katana build...). I feel that's enough to make it feel like a new experience haha.
The fact CDPR said that this upcoming expansion is the only planned expansion, sort of helped the decision of rerolling vs reloading. I know what to expect in regards to content volume, so I feel content rerolling. I think being a semi-control freak also plays into my avoidance of re-doing the same stuff again. Also, cool that it's an actual Expansion, like the old days, instead of just "DLC".