I knew it. When Conte decided for 3-5-2, Litch and Pepe would be no longer starters in this team. When he wanted Isla, he decided Litch would be at most a rotation player and that's it. I don't see any signs that 4-4-2 will be used this year. In the friendlies, Litch and even Marrone played as CBs, just in order to keep the scheme.
Also, Conte has a bonner on Padoin, just like he had on Borriello. And Padoin will basically backup Isla as a wrb. Caceres will be used as rb when needed, but that shouldn't happen very often.
I do believe Conte will let him go and that Marotta will get anything above 15M. If PSG are serious they'll get him. Just hope the money is reverted to great players.