Trump will probably cancel to avoid the possibility of improvement on Biden's part and leave the US public with the image they currently have. There's absolutely no reason for Trump to agree to another one, he's the uncontested winner of the last debate and he likes to be the winner.
Maybe
How will Biden look after the next debate? What if he starts bleeding from his eyes again?
I'm still betting there won't be another.
Trump will probably cancel to avoid the possibility of improvement on Biden's part and leave the US public with the image they currently have. There's absolutely no reason for Trump to agree to another one, he's the uncontested winner of the last debate and he likes to be the winner.
Definitely possible.
I think Trump might get greedy for another bad Biden performance. He likes to be the winner and winning again is even better.