Well it is not expected that we humans should understand the future. It is only a supernatural being who has the power to understand the future. God is all knowing God who understands the future. He knows just everything. There is nothing hidden from him. He knows all of. Our destiny is clearly opened before him. There is nothing about our life that he does not know. He knows even those things which we do not know. This is what makes him a God. Mind you that he is not just a God, He is the True God. He the God who makes the heavens and the earth.
Our future has been clearly stated in the word of God. The word of God teaches us everything that we should know about God and ourselves. The future of a child of God is not something so hidden. For instance, the Bible says that it shall be well with the righteous. That is to say that all those who are righteous will easily know their future. That message from the Bible makes it clear that the future of that righteous person shall be good. We have been sold the Bible is not only a book of doctrines. It is also a book of prophecy. As a book of prophecy, it reveals the future even that of the wicked.