At a minimum, threats will happen.
Outside of January 6, most fears of MAGA violence haven't come to fruition (maybe aside of some isolated events like the Paul Pelosi assault). But what made January 6 so distinct? Could it have been that Trump was directly involved? So if that's the case, something will probably happen.
My feeling is Trump is becoming more unhinged. He is also 10x angrier and more vindictive than he was in 2020. He genuinely I think feels that he is being 'persecuted' by Biden. I can see him giving no f-cks and doing his absolute best to burn the kingdom down, so to speak, if he loses this time. At this point he doesn't have much to lose, and the fact that he remains unpunished 3 years later (yes there are trials, but no convictions, etc) has grown his ego all the more. He also does not believe he was wrong with the January 6th insurrection, calling the people who were violent 'hostages.'
I just have a bad feeling about it all.