Dear Garry, In the sense that I used the analogy of the spacetime diagrams, God would see the whole curve as an actualized sequence of events, while those embedded in spacetime would still be living instant by instant exercising their free will. In the example you bring up, God sees to whole trajectory of the projectile already completed while we still view it instant by instant. These mathematical models are mere pictures to aid us in understanding our experiences and mental constructs. Let us face it for us humans we must even construct imperfect models of God in order to understand. If you think of it whenever we reason we use models which aids us in our understanding.
All understanding is based on model building.
Witness the very notion of a language. Why is it so hard to state what love is in any language, because such a concept defies the limitations inherit in every language. If God does not know what I am going to do tomorrow, then it seems to me that He Himself is also embedded in spacetime and thus could not have created it. I am not denying God's foreknowledge. So long as God sustains His creation, then spacetime exists and so there will be a future.