De acordo com a Timatic, o banco de dados usado pelas companhias aéreas:
Residents of Italy with an expired Residence Permit are permitted to re-enter Italy. They must also have a receipt issued by the Italian Post Office or Police Department proving that they have applied for the new residence permit in less than 60 days after the expiration date. They must return to Italy directly from outside the Schengen area.
Se você preencher esta condição em sua totalidade, você pode viajar e ser deixado de volta para a Itália