The actual person of Jehanne, from a village of Domrèmy, is certainly still around, but she specifically had visions to aid the Dauphin Charles regain the throne from the English. Of course, Charles is the face of the opposition to English aggression and based in Chinon. Assuming Jehanne is tasked with the same mission from God here with no Dauphin and the next two leading candidates to the throne firmly locked away in England, who does Jehanne need to seek out according to her revised visions? Next after the Orléans brothers Charles and John would be Louis of Anjou, who is out trying to regain his father's Neapolitan throne....
....it would be René of Anjou, Louis' younger brother. He would be 4th in line and would already be in Lorraine, where he was the heir to both the Duchy of Bar and the Duchy of Lorraine. He grew up to be a supporter of Charles VII in OTL and was present at his crowning at Reims. He's a youngster too, only 3 years older than Jehanne. If this peasant girl could correctly identify this kid, warn him of the impending danger he is in (since I have to imagine the English and Burgundians know exactly who René is and what he now represents), she could still, somehow, miraculously, help save France from the English. Maybe there won't specifically be a miracle at Orléans like in OTL, but something similar instead that turns it all around.