My guess is Duke and Ruddy will get picked up by Championship sides for next season - possibly small, Premiership clubs. But even if Everton were to release them on freebies, signing on fees and wages will be a different league to Motherwell. However, given the form of both players, Everton would be daft not to aim for decent transfer fees for both.
Wherever they end up, I hope the recent presence of the Americans on trial is testement to a good relationship between us and Everton. I for one, would be happy for them to send up a couple of fringe players each season for experience.