Magnus,
There were four potential developments, pure speculation on my part but knowing Mr KFS's sporting passions.....
Chopard Superfast Porsche 919 8Hz chronometer DONE.
L.U.C 8 Hz Chronograph: AWAIT
Chopard Superfast 8Hz chronograph: AWAIT.
Chopard Mille Miglia Race Edition 8Hz chronograph: AWAIT.
The last is least likely as there is a production limit to the 8Hz movement and the high-end lines like L.U.C and Superfast are priority.
Not to mention the in-house split seconds chronograph movement AWAIT.

KFS and Romain Dumas at Mille Miglia 2017 Padova Depart
Regards,
MTF