OTWO,
Even if she never comes out of the cult (never say never though!!), small steps are good. I've seen some interesting things in my family. I have a couple of JW family members who are FAR more liberal than the rest of my family (who are all UBER!!). When I mention that they are liberal JWs, they say they are offended by that and say they don't know what I am talking about. I call them out on how they aren't typical JWs and are at odds with Watchtower (e.g. they love gay people, love their gay friends, etc.). We have these conversations, with them saying they are offended and me calling them out but no one is actually upset in the least. It's all very friendly and no one gets pissed off.
But back to your wife, little baby steps may ultimately mean more normalcy for you and your marriage, even if she stays a life-long JW. I admire your love for your wife. She is one lucky person indeed.