I do not know whether there will ever be a time when every theological question has been definitively answered and agreed upon by the church before the Lord Jesus comes again, but if there is, I would not be surprised to see it make an end of the Christianity of many people. If there were nothing left to Christianity but to hear it, take it to heart, and walk it out, there would be little in Christianity for them, which is why there is little of genuine Christianity in them.