"We'll see what Frankie wants to do this year but ideally I would hope that he could slot into the European team," said Smith.
Ascot are also waiting on the availability of Richard Hills for the British line-up, although international riders Malesh Narredu and Hiroyuki Uchida are both confirmed participants and due to arrive on Wednesday.
Uchida, second to Yutaka Take in the Japanese jockeys' championship last year, and Narredu, 12 times the winner of the jockeys' title in India, will be joined on the Rest of the World team by Dubaian Ahmed Ajtebi.