per DRF.com
"Asmussen said nothing beyond the Foster is set, and it is possible the colt may not run in October in the $5 million Breeders' Cup Classic, which he won last fall. Asmussen said the
Arc de Triomphe and/or the
Japan Cup are being kicked around as alternative races so as to showcase Curlin in other parts of the world."
http://drf.com/news/article/94317.html