Due to the renovation of the Salle des Etats, the Mona Lisa is displayed to the Galerie Médicis (at room 801, level 2 Richelieu wing), until October 15th, 2019.
It might be possible that you will not see the Joconde for all types of visits (guided & audio guided).
You can go on your own to admire the major works of art.
The program of the visit and timing may change according to the visitor’s flow management by the Musée du Louvre.
It will not possible to re-enter the Louvre Museum once you leave it.