I'd still give 2024 to Trump at this point, but a lot can happen in a year. I'll explain my reasoning, but I'll start with the Dems.

Assuming that RFK Jr is even allowed to live long enough to run, he'll easily split the Democrat vote; maybe he'll even pull off something that hasn't happened since 1912. Just like 1912, however, I don't see him winning in 2024. He's not going to get nearly enough exposure, a lot of Dem voters will just stay home because they don't know anyone worth voting for (just like 2016), he's not going to pull in very many Republican voters, and NO libertarian is ever going to vote for him. The DNC wanted Harris in 2020, but she couldn't win a primary even in her home state, so they went with Biden simply because of name recognition. Harris is still going to run in 2024, but Gavin Newsom has a better chance of winning. I'd love to see the DNC try to run Harris and then scream "muh soggy knees" when she comes in third place in the general election, and who knows, they might just be that stupid.

On the Republican side, Trump is still in the lead, and the establishment's relentless attempts to take him out have all failed. Short of assassinating him (which is going to be considerably harder to pull off than with RFK), I doubt they'll actually manage to get rid of Trump. Personally, I think Ramaswamy is the better option, and according to RNC polling, he's displaced DeSantis as the runner-up, despite having no prior political experience. According to aggregate polling, any of those three would be preferable to Biden, who insists that he's going to run again, even though no-one, not even Bill Maher, wants him to.