As of this morning in Paris the metro system is running nearly to normal times on 11 of the 14 lines. Wait times are being estimated at 5 minutes.
The bus system is running at 85% of normal.
RER is running but still infrequent to and from the airports. However service is expected to increase throughout the day and weekend.
For transport to and from -Private shuttle, taxis or the RossyBus and OrlBus are still highly recommended.
http://www.ratp.info/touristes/index.php?langue=en&rub=decouvrir&cat=aeroports&page=presentation