So Pes 2015 on day one will be outdated but there will be a dlc available that updates the teams,so some players and faces will be lost.
For example Kagawa(is face),Guidetti,Holtby,Guilavogui,K.Constant,Simão,Candeias,Bounanotte,João Teixeira,Jonas,Nuno A.Coelho,Lucas Piazón,Carlitos,Hugo...