It's hard to say right now, let's just wait a couple of days and see the real final results. A lot of unpredictable things could happen though, like what happened in the U.S, everyone thought that trump will not get it but he did and Hillary lost. If she ever wins, I believe there will be total chaos in France, literally. I mean, there is a lot of muslims, arabs, africans and she doesn't want any of them. It can't end good.
Marie Le pen has no chance to win elections. The first round confirmed what sociologists not mistaken. After the debate, the gap only increased. Also do not compare the electoral system in America and in France. Trump would have won the election if America was a classic system of counting votes.