Good questions, it two new things.
#1621: It is a driverless train running in the line 1. Since November 3, there are ten driverless trains on commercial service in the oldest line of Paris metro.
The train is a MP05, it has the same design than the driverless MP89 of the line 14.
This trains has LCD screens, A/C and have annoncements in four languages (french, english, german and japanese).
#1627: This Pointe du Lac station in the line 8, it opened on October and is the 301th station of the network.
2011 have been of busiest year in term of novelty in the network since a long time.
MP05 on line 1 with driverless operation
MP89 on line 4, recent trains transferred from the line 1
MF01 on line 5
MI09 on RER A (I will post pic later).
1631.
1632.
1633.
1634.
1635.