There's only one prediction that really matters in my eyes: the prediction that Elon would win the October 2022 court case and somehow get out of his contractual agreement to buy Twitter.
Can the future be predicted? Ehh, probably not. But the thing that has held up time-and-time again is legal, contractual obligations.
1. Elon Musk is terrible at understanding contracts.
2. Because of #1, Elon Musk breaks contracts on a regular basis.
3. In some cases, Elon Musk gets sued, it takes months (or even a year+) for the courts to address these contracts, and Elon eventually gets his ass kicked in court.
#3 has the most uncertainty. But... Elon has been breaking contracts with such vigor this past year (including his attempts to "not buy Twitter", among others), that I'm willing to bet that he's going to make the same mistake again, and again, and again.
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Haraldur Thorliefsson and the FTC case are both similar events to the October 2022 court case in my eyes. They seem to have solid foundation of law. They seem to have been ignored by Elon Musk, and finally, there seems to be court action going on.
I don't know how long the court action will take, but I'm willing to bet against Elon Musk on this one.