On the 8th of December in Paris, Joe Pater and Brian Smith presented a paper to the "Phonologie du Français Contemporain" meeting , entitled "Le ‘e’ en français: élision, épenthèse, les deux, ni l’un ni l’autre?". If you are curious about the answer, you can find it here:
http://people.umass.edu/pater/pater-smith-pfc.pdf