Leslie Nesselson's review at rogerebert.com insightfully scrutinizes the critics' hasty assignment of the term "final film" to Resnais' most recent narrative. She wryly notes that Resnais is working on his next film already. Though significantly advanced in years, Resnais may or may not have left his Orphic film as his last piece. If she's right, and Resnais produces something further beyond this Orpheus, then we won't ultimately be able to note how Orpheus narratives seem to cap artists' collected ouevres.
The imbd.com summary of Vous N'avez Encore Rien Vu:
From beyond the grave, celebrated playwright Antoine d'Anthac gathers together all his friends who have appeared over the years in his play "Eurydice." These actors watch a recording of the work performed by a young acting company, La Compagnie de la Colombe. Do love, life, death and love after death still have any place on a theater stage? It's up to them to decide. And the surprises have only just begun...