"Milan is an option, as are Manchester City and Chelsea. Pep is listening to offers and evaluating them, but he will not coach this year. We'll talk about it in June," he told Italian radio station TMW.
Guardiola has been heavily linked with the Italian giants in recent weeks, forcing the club to issue an official statement dismissing such speculation.
Orobitg reiterated his client's stance: "Guardiola isn't going to Milan? Who told you that? I am Guardiola's manager, not his brother Pere.
"Anything is possible next year. I speak to [Milan vice-president Adriano] Galliani all the time, and when I speak to him he is very friendly.
"We have a good relationship. Who knows what will happen in the future?"
Guardiola has been out of football since announcing his departure from Barcelona towards the end of last season.