This is an odd thread. Just about all of the participants here are convinced by the Church as it currently stands is not Christ's Church, mainly because of how it currently stands. The obvious answer is the Church would have to become more "Protestant," to a degree in which the Catholic Church would lose much of its present identity.
Catholicism isn't going to do that, and Protestants aren't going to swim the Tiber unless they're somehow convinced the Catholic Church is more biblical than their own (and that using their biased interpretations of the text).
I just don't see the point. Maybe God likes a Christianity of many shades and hues.