GT Sport surely not, but it could sell around like GT5 Prologue. GT7 could outsell GT5 if it will be marketed not worse than it and if it will enjoy equal or better conditions (PS4 user base at launch and lifetime, momentum, bundles, DLCs, online activities, weekly HW sales in the most significant periods for the game's sales, launch period and competition during it, successive editions and their launches and marketing, etc.)