I simply don't see a 2024 run, and I don't think anyone else realistically is worried about one either. He'd be 80, the amount of baggage he has is incredible, and for all of his supporters they aren't going to overcome his detractors, especially as their numbers dwindle over the next four years. In terms of being discredited, pretty much everyone who is that worried about discrediting him already feels he is thoroughly discredited. So I don't think that's an issue either.
But, what it would do is bar him from holding federal office again. While I don't see another presidential run, with midterms I can see him selecting a district with a favorable demographic and suitable golf course to get a seat in the house, maybe a senate seat if he see's any that would be a sure thing. While a demotion of sorts doesn't fit his character, being a prick and maintaining relevance most certainly is in his character. Hell, being in a position to go argue with Pelosi on occasion could pretty well serve as his retirement hobby on days when the weather isn't favorable for a round of golf.
That, along with any other protections and privileges typically afforded former presidents, being barred by a conviction is I think the end goal.