That sounds pretty right, before Emirates used to have an external Recruitment agency do the Open day and then a week later or so the Emirates recruiter would come to that city for AD ! and as a heads up , when you look at the AD dates Vancouver, Toronto and Montreal shows, hinting that the OD would just be that !!!
Now seat back and let your imagination run wild until they decide if you are worthy to attend there AD !
Patience is a virtue
Good Luck to all