Well there is this unofficial theory about FM. FM05 was SI Games' first go at the game alone after the Eidos split. So that could be considered a "new" game. FM06 was therefore seen as a safe update with improvements on FM05. Then FM07 was another "new" release with new features etc with FM08 being the "safe release". So this theory that isn't grounded in terms of evidence says that FM09 is a big new release of FM and that FM10 would be the tidying up game.