I don't think Trump will be assassinated, but that's another discussion for another day.
If he's convicted of a crime, then no.
If not, then fine, he gets a state funeral.
But I suspect there won't be that many leaders of state attending, more like a person appointed to stand in for them. Perhaps some leaders who are dictators may say something nice about him from their palaces. I'm sure the MAGA folks will come out to see him off....but it won't that big of a showing, like his inauguration where the stands were empty.
And for political points, a whole slew of politicians will show up in black armbands so they can go back home to get re-elected. They don't actually care about Trump, they just want the votes.
But, we all know that even if Trump dies in his sleep via a heart attack brought on by one too many McDonald's cheeseburgers, QAnon and all the other mouth breathers will claim a conspiracy. Like Scalia. So, I suppose you will have at least that idea to keep posting here....
In any event, I doubt it will be a huge event, but rather a mediocre one full of political theater. It will be just as white trashy as his time in office.