I think people assuming Bloomberg is going to be roasted and embarrassed tomorrow will be sorely disappointed. Most people are aware of his stop and frisk policy by now.
It doesn't matter if he over-performs the low expectations of this forum. We may even declare him the winner.
What matters is that he will almost certainly under-perform the high expectations of his would-be voters. This is going to be the first time they see him and you never get a second chance to make the first impression.
And no, contrary to what you are saying, Bloomberg's low information voters are not aware of his stop and frisk policy or any other racist, sexist, or elitist thing he has said and done in the last ten or so years.