Mester - obviously I don't know your wife or the specifics of your relationship. I do know that losing a loved one as a result of my drinking was the wake-up call I needed to put 100% effort into recovery. And I didn't do it because I was trying to win them back - I honestly didn't think they'd ever speak to me again - I did it because I didn't want to lose anything/anyone else in my life.
The good news for me is that the person I thought I'd lost is back in my life, but it's slow going while trust is being rebuilt. I can't say what will happen in your situation, but doing the right thing for the right reasons is your best chance. It's the best decision you could make for your family, regardless of how this plays out.