Martyn Meade’s colt filled the runner-up spot behind the subsequently sidelined Calyx in the Coventry Stakes at Royal Ascot before running out a facile winner of the July Stakes at Newmarket.
Connections have been aiming towards this weekend’s Group One feature ever since, but are now considering a trip to France.
Freddie Meade, assistant to his father, said: “We are deciding whether we go to Ireland or France for the Prix Morny.
“Ireland has always been the plan. We are just taking into consideration all the travel and those sort of things and whether France would be a better option for us.
“The forfeit stage has come out for the Phoenix Stakes today, so we will have a look at that and go from there. I’d say it is 50-50 at the moment.
“We always identified the Phoenix as the target and because those entries were out and the Prix Morny entries weren’t out, that is why Ireland was the main target, but having looked at it and thought about it, France might be a better option.”
Should Advertise line up at the Curragh, he will be taking on the might of the Aidan O’Brien operation as he bids to become the first British-trained winner since Mark Johnston’s Princely Heir in 1997.
O’Brien is responsible for 10 of the 14 juveniles confirmed, with Coventry Stakes third Sergei Prokofiev heading the squad.
The Ballydoyle mastro’s other potential runners include Albany Stakes third Fairyland, Richmond Stakes scorer Land Force and So Perfect, who won the Grangecon Stud Stakes over this course and distance.
O’Brien has saddled a staggering 16 winners of the race in the last 20 years, including each of the last four.
Previous O’Brien-trained victors include Johannesburg (2001), George Washington (2005), Holy Roman Emperor (2006) and Caravaggio (2016).
Jessica Harrington has left in a pair of course winners in Indigo Balance and Klute, while the other Irish-trained contender is the Mia Mento, who made a big impression on her debut for Tom Mullins at Leopardstown.