Anne has appeared in Star Stable Online and is trapped in Pandoria. Concorde is the only Soulrider horse to not have appeared in Star Stable Online. The only thing about him in SSO is the sweater with a picture of him inside a star, available in Jarlaheim.
Concorde and Anne were very well known for their dressage skills, and the last anybody in Jorvik had heard of them was that they were touring the mainland while competing.
Concorde is deceased as Katja tells us after she accepts our Challenge of Truth. It doesn't mean all hope is lost, as Elizabeth is going to tell us about Star breeds. The breed the soul riders ride.