I doubt it. Odds are more favorable he just finds an excuse why they are "fake" if he loses and tries to stay in that way. If he wins it is real all day everyday. So in late September and early October we will start hearing rumbles of conspiracy. The deep state is against him sort of thing. Certain states faking or being corrupted because of mail vote (he is setting that one up already). He wins it disappears. He loses it is all out war on America and it's people.
It's more his style to be passive aggressive then directly aggressive. It is why he loves Twitter and Fox News. He can lash out without direct confrontation and then ball up and say little to nothing once face to face. It also plays to his ego because it gives him a chance to win still. He wants to win. No election means he stays in for sure but it isn't beating the opponent. So he can just go scumbag if that doesn't work out.