Your information is good. Unfortunately, your wife must be willing to overcome her "cult-control" filters to see it. If she has some reservations about the WTB&TS you might get through but if she is a hard core beliver it will not matter how good the evidence is. This may be make or break for your relationship.
If you haven't already exposed her to any information you might be better off approaching her from a simple "I can't believe a Loving God would kill all the unbeliever's babies and children at the big "A" and this has really been bothering me.". Or explain that when you run the numbers it becomes clear that the longer Jehovah postpones the big "A" the greater the number of people who will exponentially be killed because the population of nonbelivers is growing at a vastely higher rate than believers (JWs) and that their preaching work can never catch up to reach them. The big "A" should have happened years ago when millions would not have been born just to be killed. You may also mention that huge areas of the Islamic world and Asia have never been touched by the JW's message and that the Society uses "collective guilt" to excuse this uncomfortable fact. Is God a racist and is He regionally biased? The scenario presented by the Society just doesn't make any sense and this bothers my conscience.
There is NO "Apostate" information contained in these obvious self-evident problems/contradictions. The other thing that bothered me long before I ever had any exposure to "Apostate" information was how could Jehovah be inspiring the Society to "cry wolf" over and over again as it relates to the coming of the big "A". If your wife is a life long JW surely she realizes that even in her short lifespan the Society has promised that the "End" was only a few years away over and over again. How does falsely claiming this strengthen anyone's belief or faith over time? Why would God "spirit direct" them to falsley proclaim this over & over again only to tear down a believer's faith and make nonbelievers all the more skeptical?
I only suggest bringing up these points because you could not be accussed of having "Apostate" sources for these troubling problems nor are they very complex or fact heavy since they are mostly common sense observations which trouble the emotions of a kind and loving person.
Best of luck what ever you decide. You are in a tight spot.