Yes. Even in the absence of a foreknower, it would be true that, for instance, a certain coin flip will end in only one of heads or tails, not both - yet that fact doesn't mean that the other outcome was impossible. Likewise, neither does God's foreknowledge of the outcome mean that the other outcome is impossible.
Do you mean God can be wrong?
He knows the time of your death doesn’t He? How could His knowledge of that change?
No offense, but while I’m sure you believe you do, I don’t think you really KNOW anything about God’s foreknowledge.