from a ckii point view. I feel that if a game were to receive these passes past its traditional 'game is a new release' window that you'd end up with a game-ending it's development cycle earlier than it would. The reason being that such an 'old' game would get X amount of time and money to develop a new expansion but on that expansion release they would look at the total sales figures for it (past pass revenue not included) and maybe decide the RoI isn't sufficient enough for any more future expansions.