My father left the witnesses at the sime time I did. (1980) He pretty much became a non-attending Presbyterian, where I just became a secular non-religious type. He was comfortable with the Presbyterians because that is where they went before the watchtower.
When he was getting pretty close to passing away in 2003, he asked me to go down to the Presbyterian church and talk to the minister to arrange the ceremony. I not only did this but also slipped into their Sunday services a couple of times just to see what they were all about. Their pastor saw me privately and was really a nice guy. Listened to our exJW story and did not try to force me in any way. He just wanted to help out our family. Nothing about it gave me the creeps at all. I just don't feel the need for more religion now after the time at the khalls.
If I don't miss my guess, your wife probably already knows where you are going on Sunday. If your minister is anything like my dad's, this may be an important source for help as your family situation develops. I would discuss it with him yourself ASAP - probably you will know when the time comes to go further. As you say, she has a high emotional content, so she may be able to see the difference between a congregation of people being forced to do things versus one which has an free sense of themselves.
PM if you wish, James