The highly-rated Edwards has been offered a new deal but has yet to sign while Forde could take advantage of the clause in his contract allowing him to leave if The Lions failed to win promotion last season and could follow Lenny Pidgeley out of the door.
Forde had been rumoured to be unhappy at the club after coming in for some stick from the terraces while Edwards is said to be put out by the signing of Brighton keeper John Sullivan meaning Kenny Jackett will have his work cut out if he intends to keep either of his former first-choice keepers.