Survey says: No, he probably won’t! And you won’t want him if he does!
It’s pretty simple: most cheaters I’ve known, in the end, try to get back together with their spouse. Sometimes it’s because of love, other times because of the kids, but in the end, they do try. The spouse doesn’t always take them back, but they try.
Say he does leave, though. You’re never going to have the trust needed to sustain a relationship because he’s a cheating scumbag. You know he is, because he cheated with you. One way or another, the paranoia will creep in, because you really do have reason to suspect him.
In short, you’re in a no-win situation: they really mean it when they say “cheaters never prosper”.