They might they might not. But I decided I didn't want to wait my life away either way. Life is just once and "waiting" for it to get better as time ticked is a recipe for resentment IMHO.
For my XAH when he was in recovery briefly once he did return to his old self for about 7 months. Then he drank and I was resentful. It was shortly after that I had my first awakening of sorts and decided not to wait my life away.