An Ifalna and Gast Story

what if Professor gas never died but survived his wounds? he then tracked down and free, his child and wife? what if Ifalna never Succumb to her wounds or was never wounded at all? what if Aerith simply never knew Elmyra Gainsborough? would things played out differently? would Hojo still would of played a role in the young child life? what would it be like always having the Turks and Shinra breathing down their necks? would Aerith life be more happy or would life been harder? would Aerith still would of met Cloud or the others?