Is there a chance he'll calm down? I suppose. Is it likely? Nope. Odds are he'll get worse. I'd lose him now. It sounds like you never intended to have a male anyway, so no great loss. Plus, there are plenty of good roosters out there if you do want one. No reason to have to deal with what is currently inconvenient and at any time could become a downright liability. Do you have kids or do they ever come to your house? Look at some pictures of the spurs on a mature rooster and consider how much closer to the ground a child's face is. It's just not worth it.