Hi Robert,
I have just checked the current version of the
2017 Disney Dining Plan brochure and you are quite right in saying that at this moment in time,
Chefs de France in Epcot is not shown as a participating restaurant.
Similarly, on the Walt Disney World website, it does not currently show that the 2017 Disney Dining Plan is accepted at Chefs de France nor how many Disney Dining Plan entitlements are required at this dining location.
As far as I am aware, each individual non-Disney operated dining location has until the end of the year to decide whether or not they would like to participate in and be included on the Disney Dining Plan the following year. It looks as though Chefs de France (and many other restaurants) has not confirmed that they would like to participate in and be included on the Disney Dining Plan in 2017 at this moment in time.
I have no doubt that many more restaurants will be added as participating dining locations before the start of next year and would therefore recommend that you stop by the Walt Disney World website periodically between now and then to see if the 2017 brochure has been updated to include additional participating dining locations.
Wishing you a magical trip filled with memories which will last a lifetime!
Emma