In an interview in this morning's "LES ECHOS", the CEO of Aéroports de Paris has confirmed that by October of this year, all of Air France's flights and those of its Skyteam partners will be concentrated in Terminals 2EFG, with Terminal 2F (and presumably 2G which is regional) being for Schengen flights, and the three parts of Terminals 2E (the "jetty" and satellites 3 and 4 (which opens in July I believe)) will be for non-Schengen flights. This will allow passengers from Schengen flights to not be required to go through an additional security check and will greatly facilitate the transfering between Skyteam flights.
Further points in the interview, Terminals 2A and C will be connected by a new building that will have some gates and shopping areas. The opening of Satellite 4 and the transfer of all of Skyteam Schengen flights to 2F will allow for ADP to close Terminal 2B temporarily for a complete refurbishment. Terminal 2B is expected to re-open as a dedicated Easyjet terminal. Plans are also underway to connect 2B and 2D in a similar fashion as 2A and 2C.