I hope your fears are unfounded, and I hope you have better luck confronting your wife than I did.
The first time I confronted AW, my daughter and I threw out her booze, and she either quit or eased up for six months or so.
The next time, after I noticed that she was getting drunk more often, she gave all of her liquor to a friend and said she would quit because it wasn't worth having me upset with her. That time, she lasted about two weeks.
Then, she promised to quit drinking if it would make me want to have sex with her more often... that one lasted two days.
I don't bother confronting her any more.
Once this disease takes hold, it seems to be very tenacious. My AW is drunk an average of four times a week now. If your wife isn't visibly drunk, maybe you can get through to her. However, if she's hiding it, that's not a good sign, from what I've heard.
Good luck; I'm relatively new at this myself, but you'll get some excellent advice from others here.