Already starting. The support for last gen systems is waning and we are going be forced to 'upgrade' to the newest consoles. I just double checked the story from another site and no Pro Club Mode for the 360 and PS3 versions of the game.
FIFA 15 will hit the shelves on September 3 for North American region and September 25 for European region. However, sad news that Pro Club mode will never hit Xbox 360 and PS3 comes from EA Sports. Details: http://www.gold4fans.com/News/14082603561892/Info.aspx