Illuminating call with the FD helpdesk:
1) starting date new program: 1st June
2) elite bonusses: Silver:50%, Gold: 75%, Platinum: 100%
3) if member flies on Kenya or SkyTeam carriers nothing changes (award and level miles are earned); on other partner airlines (e.g. Malaysia, Malev, China Southern) ONLY award miles
4) minimum mileage for short flights: 750 miles ^
5) award miles expire after 36 months
6) miles needed for yearly level renewal: 25/40/70, but 30/60/90 if member resides in France
7) awards can be booked only on SkyTeam carriers, not on partner airlines
8) new world zones (Central America will require more miles than Northern America, Asia will be divided into two zones, introduction of two Pacific Ocean zones, etc)
9) some partners (which ones?) will leave the program

On the poz side: possibility to hold a new booking for 4 days before confirming. ^ ^ ^