So is there anyone who has existed, exists right now or will exist about whom God has no knowledge of the choices they are likely to make?
There’s a problem with your question.
"So is there anyone who has existed . . . about whom God has no knowledge of the choices they are likely to make?"
It is more than grammatical. It reflects how you are thinking of God as predicting or seeing the future, rather than His being everywhere and in every time.
Do you see it?
:twocents:
First, how about if I complicate things a bit more:
God relates to everyone; He loves us as His children.
Through His Love, God creates us and seeks to bring us to Him.
It is through His love that He knows us.
He would know us in a way similar to how one knows one’s spouse - an intimate loving relationship.
Back to your questions:
Relative to this particular moment in time.
If a person existed before now and is dead, they will not make any more choices. God is aware of all that is that person - their worries, joys, and the nature of their interactions, whether the person is aware of them or not.
If the person exists right now, everything that has happened before is known in the same way that it is known now - as a living truth. All the choices they will make as God reaches out to them are known as this moment is known, all happening in His eternal Now. He sees it all as it happens, whenever it happens.
For the person born in say 2020, God brings him into creation and guides him through life, whether or not the person is aware of this happening. (God is everywhere, and this makes Him difficult to see.) This person is known by God, as is the person born in the year 1020 and as we are now.
I would say that the choices refer the ups and downs in the relationship with God. When you seek the truth, when you hold your tongue, when you pay the families bills you are strengthening that relationship by giving of yourself. You become love. When you withdraw into selfishness the bond is weakened.