Apparently he's unhappy on the taxi squad and have asked for a trade. What do you think is his value ? I'd let him go for a prospect of similar age or younger and or a pick depending on the upside. Mete right now is a no.5 to no.7 depending on the team and I see maybe a top4 upside in his prime. A physical 3rd line winger or a younger defenseman that would be playing in the AHL this season but with similar upside (questionnable top4 upside) would be a good trading of assets. Mete can improve your brigade right away, but dont expect him to post many points even if he looks like he could.
Nitpicking, but he is the spare D on a 22-man roster, not on taxi squad. He would need to clear waivers to be sent to the taxi squad and his cap hit would be buried.