The former Gunners netminder would be "quite happy" for his old club to sign the England international from Premier League rivals Manchester City
Former Arsenal goalkeeper David Seaman would welcome the signing of England goalkeeper Joe Hart.
The 30-year-old spent last season on loan with Torino in Serie A after being deemed surplus to requirements by Manchester City boss Pep Guardiola.
Willy Caballero is to leave the club at the end of his contract but City are widely tipped to sign Ederson from Benfica in the coming weeks to compete for the number one spot with Claudio Bravo.