Does anyone with abusive tendencies ever change?

i'm wondering what your opinion is regarding someone with abusive tendencies 'changing their ways'. everything i have read indicates that intensive theutic intervention can help the person who is abusive, and my estranged husband is in counseling, but is at the same time still in that same loop of blame, nonaccountability, and denial. i recently moved almost 2000 miles away from him, but we left everything 'open ended' as far as filing for divorce vs. reconciliation. we decided to give it TIME. which is all right and good, but i'm beginning to think that there is no change in sight for him, and to reconcile would mean me going back there, right back to the same lifestyle and BS. he sees no problem with anything he says-does, so am i just hoping against hope that a change is going to happen??