If New Jersey lets him go as a free agent, Glass would become an unrestricted free agent, not a restricted one, on July 1 and would be able to sign with any NHL team.
Although the Devils could still sign him under a new deal, they would lose him for nothing once the market opens.
Glass had seven points in 14 games with the Devils after the trade from Pittsburgh
Glass played 14 regular-season games with New Jersey following the trade from Pittsburgh, posting two goals and seven points with a plus-4 rating. He was blanked in four playoff games, going minus-2.
A former sixth-overall selection in the 2017 NHL Draft by the Vegas Golden Knights, Glass has yet to live up to his top-prospect expectations. He has 35 goals and 58 assists for 93 points in 252 games for Vegas, Nashville, Pittsburgh, and New Jersey.
His status as a former high pick might still make teams see him as an intriguing low-risk addition for those wanting to acquire depth and upside.