There's a very real chance he does something to prevent it
Although I suspect the outcome will involve some sort of "knife to their throat" concessions.
Whatever the final outcome, it's still an overall loss... to an extent. TikTok very lightly redeemed itself in my eyes once I saw that they allow something closer to "free speech" that the Musk-types jerk off to in a cynical way. The unfiltered footage from Gaza and at other times from other places helped some amount of young Americans see how much they're constantly being lied to. That was the whole reason for the bi-partisan hardcore push to ban it.
So, with that in mind, I am pulling the lid from my third eye and seeing the darkest possible future where Trump has the TikTok CEO and someone like Scuffed Lex Luther (Jon Greenblatt from ADL) come and hash out a "We don't ban TikTok, but you actively block all anti Israel content."
Trump gets a victory and huge boost among young people and the inshittification of everything progresses forward