GameFly has a listing for Prince of Persia Trilogy HD with a March 22, 2011 release date. The game was previously announced as being disc-based only for Europe, Middle East and African territories. All three games were released in North America via digital distribution on the PlayStation Network.
We've contacted Ubisoft for comment, but the publisher has yet to respond. GameFly tells us it hasn't changed its listing policy, which means it will "simply post information as it is supplied to [GameFly] by the publishers."