It "might" happen; it "might not" happen. However, would the judgement of God be wrong and out His holy character if it did happen? Some wag said something to the effect: "If God does not judge America, He should apologize to Sodom and Gomorrah." Remember how after 9/11 the nation was so "religious" for a short while? We need a good "dose" of Daniel 9:3-19. The petition is great, but the prevention is better!Jim: this petition is actually part of the prevention measures. This is not a question of whether God may ever use Pat Roberston as a prophet: it is about whether he ever has in the past, and the answer is plainly "no".
Thanks for asking.