Mamool disappointed in the Arc de Triomphe on his latest start, while Fantastic Love and Razkalla finished first and fifth respectively in a fiverunner Listed race at Newmarket recently.
"It all depends on how they ship in and how they train in the build-up to the race," said Crisford.
"It will take a week before they settle in and we can have a look at them."
Meanwhile, Britain's Breeders' Cup chances have been boosted with the news that the Arc third Ouija Board is being primed for a trip to Texas.
Connections have yet to decide on her target, though market signals suggest the Filly & Mare Turf is the favoured option at this stage.