In France could the new boss be the same as the old boss?

In France could the new be the same as the old boss? Is next President of France Sarkozy? He just win his party's leadership,next step President? President of France today is Socialist Francois Hollande,who beat Sarkozy when he ran for re-election,however,since then Hollande has become very unpopular and he's learn there big difference between theory and reality(what a concept).