Course Changes Coming to Trail Alsace Grand East

UTMB’s blockbuster race in the Alsace region of France will be seeing a couple of changes to their 100M distance race. Registration is already open for all races but it seems that the starting point of the 100M has been moved from Colmar to Turckheim – five miles from Colmar. The final route and mileage has also not been announced yet. I wonder what prompted that change?