The line 14 to Orly.Southern extension?
When translated to EnglishAprès la ligne 1 , l'automatisation de la ligne 4 fut à l'étude mais, à cause des coûts, l'automatisation est pour le moment abandonnée.
http://fr.wikipedia.org/wiki/Ligne_4_du_métro_de_ParisFollowing the commissioning of the line 14 in 1998, RATP planned automation of the pipe lines 1, 4, 6, 7, 9 and 13 in 2050. After Line 1 , automation of line 4 was being considered but, because of costs, automation is currently abandoned.
I was not thinking of that.^^ unless it makes more economical sense to scrap them for parts (ie: spares for the existing MP89 trains).
The same thing happens in the aviation industry where sometimes 5 year old planes (which is very young for an aircraft) get scrapped (the correct term is actually parted out, but you get my point) because they are worth more in parts than they are as a functional aircraft.