Originally Posted by
enzo0511
Amex has not updated their website yet, so it's hard to know what will change
I tried to call customer care but they have no clue for the moment
I wouldn't expect them to update their website for a long, long time.
After all, if you order the card now, you get the current card, with the current T&Cs and the current Flying Blue programme.
These "changes" will only come into effect in April 2018. You can't order that new card yet. Therefore, the details won't need to go online for a long long time.
(I would expect them to write to you in due course, outlining the changes, and giving you the option to cancel your card if you are not happy with the new terms).