The new 2016 CFF/SBB timetable starts on December 13th, 2015.
According to the CFF, 80% of the timetable in the Swiss French area will be changing
due to the major works program that will start in 2016.
The changes will involve both times and platforms (voie/quai).
For the trains to/from Zurich - Swiss French area
, there will be changes to the platforms as the trains will now use the new underground train station.
Link to the 24Heures article: http://www.24heures.ch/suisse/nouvel...story/29997057