Lions GM Martin Mayhew was fairly candidate with their offseason intentions on Friday as he discussed their plans for a number free agents.
Ross, 25, was waived by Green Bay during the season and was later signed to the Lions practice squad. He managed to step in and be an effective returner for them during the final six games of the season.
Durham, 25, appeared in all 16 games for the Lions and caught 38 receptions for 490 yards and two touchdowns.
Detroit can retain both players for close to $700,000 next season.